### Science - Physics GK Quiz - for SSC/FCI Exam

Science - Physics GK Quiz - for SSC/FCI Exam Set-31:
The list of Important Gk Questions from science physics were given here. Candidates those who are all preparing for SSC / FCI and All other competitive examination can use this material.

1). Magnetron is used for the production of
a)    X - Rays
b)    Cathode rays
c)    Microwaves
d)    Positive rays

2).speed of bodies exceeding the speed of sound are called
a)    Supersonic
b)    Ultrasonic
c)    Infrasonic
d)    Superfast

3).Which of the following actions will double the period of a simple pendulum?
a)    Double the length of the pendulam
b)    Double the mass of the bob
c)    Make the mass of the bob √2 times greater
d)    Make the pendulum four times long

4).Refractive index is higher for
a)    Glass
b)    Water
c)    Rock - salt
d)    Diamond

5).According to Newton’s formula, the velocity of sound n a medium is
a)    V = √ ( E / d )
b)    V = √ E / d
c)    V =  E / √d
d)    V = EA / d

6). The intensity of an earthquake is measured with a
a)    Barometer
b)    Hydrometer
c)    Polygraph
d)    Sesimograph

7).The splitting of a beam of white light into its different colours is known as
a)    Refraction
b)    Reflection
c)    Dispersion
d)    None of these

8).Which of the following functions is performed by a photo – cell?
a)    It converts magnetic energy into electrical energy.
b)    It converts chemical energy into electrical energy
c)    It converts electrical energy into light energy
d)    It converts light energy into electrical energy

9).In winter, the temperature of the inside wall of a house as compared to the temperature of the air in the room is
a)    lower
b)    higher
c)    the same
d)    depends on the atmospheric pressure

10).Sun spots are
a)    the mountains found on the surface of the sun
b)    the dark patches having less temperature than the normal surface
c)    ionized gas found near the solar surface
d)    the magnetic storms on the surface of the sun