PHYSICS MULTIPLE CHOICE QUESTIONS SET 156

PHYSICS 

MULTIPLE CHOICE QUESTIONS SET 156

1. the density of gas is maximum at
(a) Low temperature low pressure
(b)Low temperature high pressure
(c)High temperature low pressure
(d)High temperature high pressure

2. Why is it difficult to breathe at higher altitudes?
(a)Due to low air pressure
(b)Due to low temperature
(c) Due to ozone
(d)Due to high humidity
 
3. The strongest force in nature is
(a)electrical force
(b)gravitational force
(c)nuclear force
(d)magnetic force

4. According to the theory of relativity which of the following alt ways remains constant ?
(a)Length of an object
(b)Time
(c)Space
(d)Velocity of light

5. The spoon dropped by an astronaut in a satellite will
(a)fall to the floor
(b)remain stationary
(c) continue to follow the motion of the satellite
(d) move tangentially away

6. Pipelines in cold countries often burst in winter because
(a)water freezes and expands in its volume
(b)temperature of ice is less than that of water
(c)pipelines contract in their volume
(d)pipelines expand due to freezing

7. When a body is taken from earth to moon
(a) mass changes but weight remains same
(b)weight changes but mass remains same
(c)both weight and mass change
(d)both weight and mass remain same

8. A mirage occurs because of
(a)reflection by hot ground
(b) total internal reflection by layers of air
(c)interference of light
(d)diffraction of light

9. Atomic power plant work son the principle of
(a) fission
(b)fusion
(c)thermal combustion
(d)combined effect of all the above three

10. Bolometer is used to measure
(a) Frequency
(b) Temperature
(c) Velocity
(d) Wavelength
ANSWER:
1 b 
2 a 
3 c 
4 d 
5 c 
6 a 
7 b 
8 b 
9 a 
10 b