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question_answer1)
Which of the following is not a source of light?
A)
Star done
clear
B)
Burning candle done
clear
C)
Lantern done
clear
D)
Torch done
clear
E)
None of these done
clear
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question_answer2)
Which of the following is a man-made source of light?
A)
Sun done
clear
B)
Meteor done
clear
C)
Tube-light done
clear
D)
Star done
clear
E)
None of these done
clear
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question_answer3)
Non-luminous objects are objects which:
A)
Produce their own light. done
clear
B)
Do not produce its own light. done
clear
C)
Can be seen only when light falls on them. done
clear
D)
Both [b] and [c] done
clear
E)
None of these done
clear
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question_answer4)
A transparent object which is mostly used in windows of houses.
A)
Polythene done
clear
B)
Wood done
clear
C)
Glass done
clear
D)
Ground glass. done
clear
E)
All of these done
clear
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question_answer5)
Speed of light in vacuum is:
A)
\[3\times {{10}^{8}}km/h\] done
clear
B)
\[3\times {{10}^{8}}m/s\] done
clear
C)
\[3\times {{10}^{8}}m/h\] done
clear
D)
\[3\times {{10}^{8}}m/s\] done
clear
E)
None of these done
clear
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question_answer6)
Which of the following characteristics are observed in an image formed by a pinhole camera?
A)
Virtual image done
clear
B)
Real image done
clear
C)
Erect image done
clear
D)
Image of different colour done
clear
E)
None of these done
clear
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question_answer7)
Which of the following is a translucent object?
A)
Cardboard done
clear
B)
Tracing paper done
clear
C)
Clear glass done
clear
D)
Air done
clear
E)
None of these done
clear
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question_answer8)
Light travels in a:
A)
Circular path done
clear
B)
Rectilinear path done
clear
C)
Rotational path done
clear
D)
Triangular path done
clear
E)
None of these done
clear
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question_answer9)
Which of the following is not a necessary condition for the formation of a shadow?
A)
An opaque object done
clear
B)
A screen done
clear
C)
A transparent object done
clear
D)
A source of light done
clear
E)
None of these done
clear
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question_answer10)
Images of actors on screen in cinema halls are;
A)
Virtual image done
clear
B)
Real images done
clear
C)
Imaginary images done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer11)
We can see any object if:
A)
It is a luminous object. done
clear
B)
It reflects the light falling on it. done
clear
C)
It is placed in a dark room. done
clear
D)
Both [a] and [b] done
clear
E)
None of these done
clear
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question_answer12)
Opaque objects:
A)
Allow light to pass through them. done
clear
B)
Allow light to pass through them partially. done
clear
C)
Allow light not to pass through them. done
clear
D)
Both [b] and [c] done
clear
E)
None of these done
clear
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question_answer13)
A very narrow beam of light is called:
A)
Ray done
clear
B)
Beam done
clear
C)
Candela done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer14)
Which of the following images are real?
A)
Image formed on the screen of cinema hall. done
clear
B)
Image formed by a pinhole camera. done
clear
C)
Image formed by a concave mirror when object is placed at infinity. done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer15)
Narrow beam of light before reflection in known as:
A)
Reflected ray done
clear
B)
Incident ray done
clear
C)
Normal ray done
clear
D)
Reflection done
clear
E)
None of these done
clear
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question_answer16)
We place an object X in between a reflecting surface and a screen Q, on which an image of X is formed. If a clear image of object X is formed on the screen Q, then which of the following properties is true for object X?
A)
Transparent done
clear
B)
Translucent done
clear
C)
Opaque done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer17)
In which of the following medium speed of light is maximum?
A)
In air done
clear
B)
In vacuum done
clear
C)
In glass done
clear
D)
In water done
clear
E)
None of these done
clear
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question_answer18)
In a periscope two plane mirrors are fitted at its two ends in such a way that:
A)
They intersect each other. done
clear
B)
They are parallel to one another. done
clear
C)
They make an angle of \[90{}^\circ \] with each other. done
clear
D)
They make an angle of \[30{}^\circ \] with each other. done
clear
E)
None of these done
clear
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question_answer19)
Which one of the following types of energy is required to see any non-luminous object?
A)
Light energy done
clear
B)
Heat energy done
clear
C)
Sound energy done
clear
D)
Wind energy done
clear
E)
None of these done
clear
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question_answer20)
On the basis of above figure. Light from which source will form shadow on the screen S?
A)
Light source A done
clear
B)
Light source B done
clear
C)
Light source C done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer21)
Which of the following will produce the darkest shadow if the object is placed in front of a source of light?
A)
Glass window done
clear
B)
Butter paper done
clear
C)
Net cloth done
clear
D)
Wooden block done
clear
E)
None of these done
clear
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question_answer22)
A burning candle is placed on a table. We can see the light of candle flame when we see it from:
A)
Bent tube \[\to \] by keeping only one eye open. done
clear
B)
Straight tube \[\to \] by keeping only one eye open. done
clear
C)
Spiral tube \[\to \] by keeping only one eye open. done
clear
D)
U-shape tube. done
clear
E)
None of these done
clear
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question_answer23)
Rahul and Ravi are standing on the opposite sides of a closed door, both of them are able to see each other clearly. Which type of substance is used to make this door?
A)
Transparent done
clear
B)
Translucent done
clear
C)
Opaque done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer24)
Sunlight is entering from a window to a dark room, in which a table is placed, A shadow of the table was observed on the wall of the room. Match the following on the basis of above information.
Column A | Column B |
(i) | Wall | [A] | Sources of light |
(ii) | Table | [B] | Formation of a shadow |
(iii) | Sunlight | [C] | Screen |
(iv) | Process | [D] | Opaque object |
A)
(i-D), (ii-A), (iii-C), (iv-B) done
clear
B)
(i-C), (ii-D), (iii-A), (iv-B) done
clear
C)
(i-B), (ii-A), (iii-C), (iv-D) done
clear
D)
(i-D), (ii-A), (iii-B), (iv-C) done
clear
E)
None of these done
clear
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question_answer25)
_______eclipse occurs when moon comes between sun and earth.
A)
Lunar done
clear
B)
Solar done
clear
C)
Partial lunar done
clear
D)
Earth done
clear
E)
None of these done
clear
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question_answer26)
A glass sheet is given to you. By which of the following methods, it can be converted into an opaque object without breaking?
A)
Combining another same glass sheet with the given glass sheet. done
clear
B)
Covering glass sheet with thin polyethene bag. done
clear
C)
Applying black paint on both sides of it. done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer27)
Which of the following is a characteristic of virtual image?
A)
It can be obtained on a screen. done
clear
B)
It is always inverted. done
clear
C)
It is always formed in front of the mirror. done
clear
D)
It is always erect. done
clear
E)
None of these done
clear
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question_answer28)
Lunar eclipse occurs on ____ day.
A)
Partial moon done
clear
B)
Full moon done
clear
C)
New moon done
clear
D)
Crescent moon done
clear
E)
None of these done
clear
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question_answer29)
Shape of a shadow depends on the:
A)
Colour of the opaque object. done
clear
B)
Shape of the screen. done
clear
C)
Shape of an opaque object. done
clear
D)
Colour of the screen. done
clear
E)
None of these done
clear
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question_answer30)
Which of the following is used as a rear view mirror in vehicles?
A)
Concave mirror done
clear
B)
Convex mirror done
clear
C)
Converging mirror done
clear
D)
Plane mirror done
clear
E)
None of these done
clear
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question_answer31)
An incident ray falling normally on a plane mirror then angle of incidence is:
A)
\[0{}^\circ \] done
clear
B)
\[120{}^\circ \] done
clear
C)
\[90{}^\circ \] done
clear
D)
\[60{}^\circ \] done
clear
E)
None of these done
clear
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question_answer32)
The given figure is showing:
A)
Diverging mirror done
clear
B)
Converging mirror done
clear
C)
Converging lens done
clear
D)
Diverging lens done
clear
E)
None of these done
clear
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question_answer33)
Which of the following is a characteristic of the image formed by plane mirror?
A)
Erect done
clear
B)
Virtual done
clear
C)
Same size as object done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer34)
Letter E is placed in front of plane mirror, how would its image look like and also name the phenomenon involved in this.
A)
E, Reflection done
clear
B)
C)
E, Lateral inversion done
clear
D)
E)
None of these done
clear
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question_answer35)
Solar eclips can be seen on _____ day.
A)
Full moon done
clear
B)
New moon done
clear
C)
Crescent moon done
clear
D)
Gibbous moon done
clear
E)
None of these done
clear
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question_answer36)
Which of the following characteristics of an image does not belong to convex mirror?
A)
Real image done
clear
B)
Virtual image done
clear
C)
Smaller image done
clear
D)
Erect image done
clear
E)
None of these done
clear
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question_answer37)
Name the phenomenon due to which our right ear appears as left ear when we see our face in the mirror.
A)
Reflection done
clear
B)
Lateral inversion done
clear
C)
Eclipse done
clear
D)
Refraction done
clear
E)
None of these done
clear
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question_answer38)
Look at the following figure and find out the angle of reflection.
A)
\[30{}^\circ \] done
clear
B)
\[45{}^\circ \] done
clear
C)
\[90{}^\circ \] done
clear
D)
\[60{}^\circ \] done
clear
E)
None of these done
clear
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question_answer39)
Which of the following is not a primary colour of white light?
A)
Red done
clear
B)
Green done
clear
C)
Orange done
clear
D)
Blue done
clear
E)
None of these done
clear
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question_answer40)
Wool is which type of medium?
A)
Transparent done
clear
B)
Translucent done
clear
C)
Opaque done
clear
D)
Optical done
clear
E)
None of these done
clear
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