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Physics MCQs Questions Answers for SAT Test

1.The spiltting of spectral lines of an element when it radiates is a magnetic field is known as:
a. Induced emission
b. Zeaman effect
c. Population inverse
d. None of these

2. Normally the emitter of a transistor is:
a. Reverse biased
b. Forward biased
c. Not biased
d. None of these

3. Fission chain reaction is controlled by introducing rods of:
a. Graphite
b. Cadmium
c. Boron
d. None of these

4. The first atomic reactor was introduced by:
a. Curie
b. Wilson
c. Rutherford
d. None of these

5. Gamma rays waves like:
a. Sound waves
b. Beta waves
c. X-rays
d. None of these

6. The path Beta particle is:
a. Straight
b. Circular
c. Zig-zag
d. None of these

7.Air resistance has an effect on projectiles. Which factor(s) does it influence?
a. Speed
b. Maximum height
c. Range
d. All of the above
e. None of the (a), (b) and (c)

8. A container has a small hole in the bottom. Air can go through this hole, but water cannot. This can be best explained by the statement that:
a. Water molecules are larger than molecules in the air
b. Water molecules are smaller than molecules in the air
c. Water is more viscous than air
d. Surface tension of the water prevents it from escaping
e. None of these

9. The volume of a given mass of gas will be doubled at atmospheric pressure if temperature of the gas is changed from 150℃ to:
a. 300℃
b. 423℃
c. 573℃
d. 743℃
e. None of these

10. If a force moves a body with certain velocity, then the power is:
a. Cross product of force and velocity
b. Dot product of force and velocity
c. Product of force and square of velocity
d. Force divided by velocity
e. None of these

11. If the distance between a point source of light and a surface is tripled, then intensity of illumination on the surface will be
a. Tripled
b. Reduced to 1/2
c. Reduced to 1/3
d. Reduced to 1/9
e. None of these

The particle nature of light if evidenced from:
a. Polarisation
b. Interference
c. Diffraction
d. Photoelectric Effect
e. None of these

13. Sound waves are
a. Electromagnetic waves
b. Mechanical waves
c. Transverse waves
d. Radio waves
e. None of these

14. Kilo Watt Hour (KWh) is a unit of:
a. Electric Flux
b. Electric Field
c. Electric Energy
d. Electric Potential
e. None of these

15. All motions are:
a. Absolute
b. Uniform
c. Relative
d. None of these

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