Top 1000+ Solved Physics MCQ Questions Answer
Q. The earth is a –
a. good reflector of heat
b. non-absorber of heat
c. good absorber and good radiator of heat
d. bad absorber and bad radiator of heat
Q. Which law states, “The rate of loss of heat by a body is directly proportional to the difference in temperature between the body and the surroundings.”
a. Doppler’s Effect
b. Newton’s law of cooling
c. Kirchhoff’s Law
d. Stefan’s Law
Q. Why does water tank appear shallower when viewed from the top?
a. Due to reflection
b. Due to refraction
c. Due to diffraction
d. Due to total internal reflection
Q. A water tank appears shallower when it is viewed from top due to –
a. rectilinear propagation of light
b. reflection
c. total internal reflection
d. refraction
Q. The quality or tone of a musical sound produced by a stringed instrument depends on –
a. frequency of vibration
b. length of the strings in the instrument
c. Amplitude of vibration
d. wave form of the sound
Q. Rocket works on the principle of –
a. Newton's Third Law
b. Newton's First Law
c. Newton's Second Law
d. Archimedes Principle
Q. Water is used in hot water bags because
a. It is easily obtained
b. It is cheaper and is not harmful
c. It has high specific heat
d. It Is easy to heat water
Q. The motion of the wheels of a bullock- cart while moving on the road is an example of –
a. Oscillatory and rotatory motion
b. Oscillatory and translatory motion
c. Translatory and rotatory motion
d. Translatory motion only
Q. Acceleration is –
a. Inversely proportional to force
b. Inversely proportional to mass
c. Directly proportional to mass
d. Directly proportional to force
Q. A bomb explodes on the moon. You will hear its sound on earth after –
a. 20 minutes
b. 2 hours 20 minutes
c. 3.7 hours
d. You cannot hear the sound of explosion
Q. One nanometer is equal to meters.
a. 10 raised to the power (-3)
b. 10 raised to the power (-6)
c. 10 raised to the power (-9)
d. 10 raised to the power (-12)
Q. Which of the following is an example of simple harmonic motion?
a. Earth spinning on its axis
b. Simple pendulum motion
c. Bali bouncing on floor
d. Motion of a ceiling fan
Q. Magnetic keepers are used to protect magnets from :
a. Earth's magnetic field
b. effect of other magnets
c. self-demagnetization
d. demagnetization due to heating