Top 1000+ Solved Physics MCQ Questions Answer
Q. Supersonic plane fly with the speed -
a. less than the speed of sound
b. of sound
c. greater than the speed of sound
d. of light
Q. If input frequency of a full wave rectifier be n, then output frequency would be-
a. n/2
b. n
c. 3n/2
d. 2n
Q. Heat transfer horizontally within the atmosphere is called –
a. Conduction
b. Convection
c. Absorption
d. Advection
Q. The phenomenon of light associated with the appearance of blue colour of the sky is –
a. Interference
b. Reflection
c. Refraction
d. Scattering
Q. Air coolers are more suitable for –
a. hot and humid climate
b. hot and dry climate
c. cool and humid climate
d. cool and dry climate
Q. Who enunciated the laws of planetary motion?
a. Nicolaus Copernicus
b. Johannes Kepler
c. Isaac Newton
d. Galileo
Q. The radiant energy having lowest energy is –
a. gamma rays
b. UV rays
c. visible light
d. microwave radiation
Q. When water is heated from 0°C to 10°C. Its volume
a. increases
b. decreases
c. does not change
d. first decreases and then increases
Q. Natural radioactivity was discovered by -
a. Marie Curie
b. Ernest Rutherfor
c. Henri Becquerel
d. Enrico Fermi
Q. A circular plate, a cube and a sphere, all made up of same material and having the same mass, are heated to 300°C and left in a room. Which of them will have the slowest rate of cooling?
a. Circular plate
b. Cube
c. Sphere
d. All will cool at the same rate
Q. The 'Abolition of Titles' is a fundamental right classified under:
a. Right against Exploitation
b. Right to Freedom
c. Right to equality
d. Right to freedom of religion
Q. A player making a long jump is an example of .
a. Projectile motion
b. Rotatory motion
c. Spinning motion
d. Horizontal motion
Q. Which of the following is arranged in order of decreasing conductivity?
a. Copper, Aluminium, Steel, Silver
b. Aluminium, Silver, Copper, Steel
c. Copper, Silver, Aluminium, Steel
d. Silver, Copper, Aluminium, Steel