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In this website each webpage contains minimum 10 mcqs and maximum upto 30 mcqs (objective type questions), one liner questions etc.
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Physics MCQs | Objective Type Questions SET-25
Q1. 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
Ans. : (b) Low temperature high pressure
Q2. 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
Ans. : (a) Due to low air pressure
Q3. The strongest force in nature is
(a) electrical force
(b) gravitational force
(c) nuclear force
(d) magnetic force
Ans. : (c) nuclear force
Q4. 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
Ans. : (d) Velocity of light
Q5. 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
Ans. : (c) continue to follow the motion of the satellite
Q6. 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
Ans. : (a) water freezes and expands in its volume
Q7. 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
Ans. : (b) weight changes but mass remains same
Q8. 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
Ans. : (b) total internal reflection by layers of air
Q9. Atomic power plant work son the principle of
(a) fission
(b) fusion
(c) thermal combustion.
(d) combined effect of all the above three
Ans. : (a) fission
Q10. Bolometer is used to measure
(a) Frequency
(b) Temperature
(c) Velocity
(d) Wavelength
Ans. : (b) Temperature
