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question_answer1)
Assertion : Two persons on the surface of moon cannot talk to each other. Reason : There is no atmosphere on moon.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer2)
Assertion : Transverse waves are not produced in liquids and gases. Reason : Light waves are transverse waves.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer3)
Assertion : Sound waves cannot propagate through vacuum but light waves can. Reason : Sound waves cannot be polarised but light waves can be polarised. [AIIMS 1998]
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer4)
Assertion : The velocity of sound increases with increase in humidity. Reason : Velocity of sound does not depend upon the medium.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer5)
Assertion : Ocean waves hitting a beach are always found to be nearly normal to the shore. Reason : Ocean waves are longitudinal waves.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer6)
Assertion : Compression and rarefaction involve changes in density and pressure. Reason : When particles are compressed, density of medium increases and when they are rarefied, density of medium decreases.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer7)
Assertion : Transverse waves travel through air in an organ pipe. Reason : Air possesses only volume elasticity.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer8)
Assertion : Sound would travel faster on a hot summer day than on a cold winter day. Reason : Velocity of sound is directly proportional to the square of its absolute temperature.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer9)
Assertion : The basic of Laplace correction was that, exchange of heat between the region of compression and rarefaction in air is not possible. Reason : Air is a bad conductor of heat and velocity of sound in air is large.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer10)
Assertion : Particle velocity and wave velocity both are independent of time. Reason : For the propagation of wave motion, the medium must have the properties of elasticity and inertia.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer11)
Assertion : When we start filling an empty bucket with water, the pitch of sound produced goes on decreasing. Reason : The frequency of man voice is usually higher than that of woman.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer12)
Assertion : A tuning fork is made of an alloy of steel, nickel and chromium. Reason : The alloy of steel, nickel and chromium is called elinvar.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer13)
Assertion : The change in air pressure effect the speed of sound. Reason : The speed of sound in a gas is proportional to square root of pressure.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer14)
Assertion : Solids can support both longitudinal and transverse waves but only longitudinal waves can propagate in gases. Reason : For the propagation of transverse waves, medium must also neccessarly have the property of rigidity.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer15)
Assertion : Under given conditions of pressure and temperature, sound travels faster in a monoatomic gas than in diatomic gas. Reason : Opposition for wave to travel is more in diatomic gas than monoatomic gas.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer16)
Assertion : The speed of sound in solids is maximum though their density is large. Reason : The coefficient of elasticity of solid is large.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer17)
Assertion : On a rainy day sound travel slower than on a dry day. Reason : When moisture is present in air the density of air increases.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer18)
Assertion : To hear distinct beats, difference in frequencies of two sources should be less than 10. Reason : More the number of beats per sec more difficult to hear them.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer19)
Assertion : Sound produced by an open organ pipe is richer than the sound produced by a closed organ pipe. Reason : Outside air can enter the pipe from both ends, in case of open organ pipe.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer20)
Assertion : It is not possible to have interference between the waves produced by two violins. Reason : For interference of two waves the phase difference between the waves must remain constant.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer21)
Assertion : Beats can also be observed by two light sources as in sound. Reason : Light sources have constant phase deference.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer22)
Assertion : In the case of a stationary wave, a person hear a loud sound at the nodes as compared to the antinodes. Reason : In a stationary wave all the particles of the medium vibrate in phase.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer23)
Assertion : Velocity of particles, while crossing mean position (in stationary waves) varies from maximum at antinodes to zero at nodes. Reason : Amplitude of vibration at antinodes is maximum and at nodes, the amplitude is zero, And all particles between two successive nodes cross the mean position together.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer24)
Assertion : Where two vibrating tuning forks having frequencies 256 Hz and 512 Hz are held near each other, beats cannot be heard. Reason : The principle of superposition is valid only if the frequencies of the oscillators are nearly equal.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer25)
Assertion : The fundamental frequency of an open organ pipe increases as the temperature is increased. Reason : As the temperature increases, the velocity of sound increases more rapidly than length of the pipe.
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer26)
Assertion : Sound travel faster in solids than gases. Reason : Solid possess greater density than gases. [AIIMS 2000]
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer27)
Assertion : Like sound, light can not propagate in vacuum. Reason : Sound is a square wave. It propagates in a medium by a virtue of damping oscillation. [AIIMS 2000]
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer28)
Assertion : Speed of wave \[=\frac{Wave\ length}{Time\ period}\] Reason : Wavelength is the distance between two nearest particles in phase. [AIIMS 2002]
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer29)
Assertion : The flash of lightening is seen before the sound of thunder is heard. Reason : Speed of sound is greater than speed of light [AIIMS 2002]
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer30)
Assertion : When a beetle moves along the sand with in a few tens of centimeters of a sand scorpion the scorpion immediately turn towards the beetle and dashes to it Reason : When a beetle disturbs the sand, it sends pulses along the sands surface one set of pulses is longitudinal while other set is transverse. [AIIMS 2003]
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
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question_answer31)
Assertion : The reverberation time dependent on the the shape of enclosure, position of source and observer. Reason : The unit of absorption coefficient in mks system is metric sabine. [EAMCET 2004]
A)
If both assertion and reason are true and the reason is the correct explanation of the assertion. done
clear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. done
clear
C)
If assertion is true but reason is false. done
clear
D)
If the assertion and reason both are false. done
clear
E)
If assertion is false but reason is true. done
clear
View Solution play_arrow