Top 1000+ Solved Physics MCQ Questions Answer
Q. Winch of the following is not true about X-rays?
a. have low penetrating power
b. travel with the speed of light
c. Can be reflected or refracted
d. can affect photographic plates
Q. A Fuse wire is characterized by –
a. High resistance and low melting point
b. High resistance and high melting point
c. Low resistance and high melting point
d. Low resistance and low melting point
Q. Ice is packed in saw dust because –
a. saw dust will not get melted easily.
b. saw dust is poor conductor of heat.
c. saw dust is a good conductor of heat.
d. saw dust does not stick to the ice.
Q. A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum:
a. just after it is dropped
b. when it is just on the half-way
c. just before it touches the ground
d. when it touches the ground
Q. What is Hooke’s Law?
a. Stress is inversely proportional to strain.
b. Stress is directly proportional to strain.
c. Stress and strain are dependent on each other.
d. Stress and strain are independent of each other.
Q. Transfer of heat energy from a heater coil to the cooking vessel takes place through the process of-
a. Convection only
b. Conduction and convection only
c. Radiation and convection only
d. Convection, conduction and radiation
Q. A drop of liquid assumes spherical shape because:
a. Intermolecular forces are strong in liquids
b. A sphere has the least surface area for a given volume
c. A sphere has the largest surface area for a given volume
d. Inter molecular forces are weak in liquids
Q. What are audible sound waves?
a. Having frequency less than 20 Hz
b. Having frequency between 20 Hz to 20000 Hz
c. Having frequency more than 20000 Hz
d. None of above
Q. Sun appears red in colour at sun-rise and sunset due to –
a. the fact that sun emits only red colour at that time
b. red light having longer wave length scatters away
c. that sun Comes out of the mountains
d. that all other colours scatter away except red
Q. Why does a cannon recoil after firing?
a. Conservation of energy
b. Backward thrust of gases produced
c. NeMon's third law of motion
d. Newton's first law of motion
Q. During the motion of a projectile fired from the earth surface, .
a. its kinetic energy remains constant
b. its momentum remains constant
c. vertical component of its velocity remains constant
d. horizontal component of its velocity remains constant
Q. A system exhibiting S.H.M. must possess –
a. Elasticity as well as inertia
b. Elasticity, inertia and an external force
c. Elasticity only
d. Inertia only
Q. The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because -
a. the ringing is not loud enough
b. the glass of the bell jar absorbs the sound waves
c. the bell jar is too small
d. there is no air or any other gas in the bell jar
Q. At hill stations, the boiling point of water will be –
a. same as at sea level
b. less than that at sea level
c. more than that at sea level
d. equal to the melting point of ice
Q. Indicate the correct arrangement for electromagnetic radiation in order of their increasing wavelength.
a. Microwave, infrared, visible. X-rays
b. X-rays, visible, infrared, microwave
c. Visible, infrared, microwave, X-rays
d. X-rays, infrared, visible, microwave