What happen when an object having mass of 30 g and volume 40 \[C{{M}^{3}}\] is immersed in the water. The density of water is 0.5 g/\[C{{M}^{3}}\]?
A)
The object will float in water
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B)
The object will sink in water
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C)
The object will come outside the water
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D)
All of these
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E)
None of these
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Match the following:
1. Sulphur [A] Monatomic 2. Nitrogen [B] Tetratomic 3. Argon [C] Poly-atomic 4. Phosphorus [D] Diatomic
A)
1 - C, 2 - A, 3 - D, 4 - B
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B)
1 - B, 2 - D, 3 - A, 4 - C
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C)
1 - C, 2 - D, 3 - A, 4 - B
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D)
1 - C, 2 - B, 3 - A, 4 - D
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E)
None of these
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Match the following:
1. Monera [A] Blue-green algae 2. Protista [B] Yeast 3. Fungi [C] Marsilea 4. Plantae [D] Protozoans
A)
1 - B, 2 - D, 3 - A, 4 - C
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B)
1 - A, 2 - D, 3 - B, 4 - C
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C)
1 - A, 2 - C, 3 - B, 4 - D
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D)
1 - C, 2 - D, 3 - A, 4 - B
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E)
None of these
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Which of the following solutions show Tyndal effect?
A)
Salt-water solution
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B)
Copper sulphate solution
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C)
Milk
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D)
All of these
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E)
None of these
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What is the acceleration of a train that starts from railway station and attains speed of 30 m/s in 2 minutes?
A)
\[0.25\,\,m/{{s}^{2}}\]
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B)
\[0.5\,\,m/{{s}^{2}}\]
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C)
\[0.67\,\,m/{{s}^{2}}\]
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D)
\[0.0067\,\,m/{{s}^{2}}\]
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E)
None of these
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Gene is made up of:
A)
RNA molecules only
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B)
DNA molecules only
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C)
Both RNA and RNA molecules
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D)
Plasma embrane
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E)
None of these
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Which of the following is an infectious disease?
A)
Cancer
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B)
Diabetes
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C)
Malaria
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D)
Hypertension
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E)
None of these
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Match the following:
1. Aves [A] Whale 2. Amphibia [B] Ostrich 3. Mammalia [C] Sting ray 4. Pisces [D] Tree frog
A)
1 - B, 2 - A, 3 - D, 4 - C
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B)
1 - B, 2 - C, 3 - A, 4 - D
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C)
1 - A, 2 - D, 3 - B, 4 - C
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D)
1 - B, 2 - D, 3 - A, 4 - C
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E)
None of these
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If the solution surrounding the cell has a higher water concentration than the ceil, means that the outside solution is very dilute, the cell gains water by osmosis then that solution is called:
A)
Hypertonic solution
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B)
Isotonic solution
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C)
Hypotonic solution
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D)
Hypertonic or isotonic solution
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E)
None of these
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Which of the following statements is/are incorrect?
A)
The minimum distance in which a sound wave repeats itself is called wavelength
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B)
Combined length of a compression and an adjacent rarefaction in a sound wave is called wavelength
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C)
Distance between the centres of two consecutive compressions in a sound wave is called wavelength
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D)
The length of one complete wave is called wavelength
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E)
None of these
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Which of the following radioactive isotopes is used to treat cancer?
A)
arsenic-74
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B)
Cobalt-60
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C)
iodine-131
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D)
uranium-235
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E)
None of these
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The mass of the earth and moon are \[8\times {{10}^{24}}\]and \[4\times {{10}^{20}}\]kg. If the distance between them is \[1.5\times {{10}^{2}}\]km. Calculate the force exerted by the earth on the moon?
A)
\[1\times {{10}^{25}}N\]A
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B)
\[5\times {{10}^{25}}\,\,N\]
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C)
\[95.5\times {{10}^{23}}\,\,N\]
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D)
\[9.29\times {{10}^{23}}\,\,N\]
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E)
None of these
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Which of the following statements is/are incorrect for the mass of a body?
A)
The mass of a body is measured by an equal arm balance
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B)
The mass of the body can be changed according to the place
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C)
The SI unit of the mass is kg
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D)
The mass of the body cannot be zero
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E)
None of these
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Which of the following cells are dead?
A)
Parenchgma
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B)
Collenchyma
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C)
Sclerenchyma
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D)
All of these
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E)
None of these
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A unit of the nervous system is
A)
Cyton
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B)
Neuron
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C)
Axon
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D)
Dendrite
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E)
None of these
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Annelids are
A)
Flatworms
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B)
Spicules
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C)
Spinnere
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D)
Carapaces
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E)
Spinnere
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A healthy person is one who is free from:
A)
Diseases
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B)
Mental tension
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C)
Diseases and mental tension
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D)
Bacteria
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E)
None of these
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Which of the following is a solution?
A)
Coal
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B)
Wood ash
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C)
Soda water
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D)
Cement
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E)
None of these
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The buoyant force on a body acts in a
A)
Vertically downward direction
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B)
Vertically upward direction
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C)
Horizontal direction
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D)
All of these
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E)
None of these
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A body floats in liquid if the buoyant force is
A)
Zero
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B)
Greater than its weight
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C)
Less than its weight
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D)
Equal to its weight
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E)
None of these
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The momentum of a body of given mass is proportional to its
A)
Volume
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B)
Speed
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C)
Shape
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D)
Colour
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E)
None of these
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The unit of power is:
A)
Joule
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B)
Watt
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C)
Nearton
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D)
Kg
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E)
None of these
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