Gate Way To CGL Mains : Physics Quiz

1. Harry Brearley has invented

A.Electric iron

B.Electromagent

C.Stainless Steel

D.Gramophone

2. Who discovered Atom ?
A.Madam Curie

B.James Chadwick

C.Rutherford

D.J J Thomson

3. Who discovered Diode Bulb ?

A.Henry Becquerel

B.Sir J.S. Fleming

C.Lee De Forest

D.Archemedes

4. Radiocarbon is produced in the atmosphere as a result of

A.collision between fast neutrons and nitrogen nuclei present in the atmosphere

B.action of ultraviolet light from the sun on atmospheric oxygen

C.action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere

D.lightning discharge in atmosphere

5. The absorption of ink by blotting paper involves

A.capillary action phenomenon

B.viscosity of ink

C.siphon action

D.diffusion of ink through the blotting

6. Siphon will fail to work if

A.both its limbs are of unequal length

B.the temperature of the liquids in the two vessels are the same

C.the level of the liquid in the two vessels are at the same height

D.the densities of the liquid in the two vessels are equal

7. Nuclear sizes are expressed in a unit named

A.Fermi

B.Angstrom

C.Newton

D.Tesla

8. Light year is a unit of

A.Time

B.Light

C.Distance

D.Intensity of light

9. Radian is used to measure

A.Temperature

B.Intensity of Flame

C.Angle

D.Solid Angle

10. newton is used to measure

A.Speed

B.Volume

C.Force

D.Area

ANSWER KEY:
1 - (C)
2 - (D)
3 - (B)
4 - (A)
5 - (A)
6 - (C)
7 - (A)
8 - (C)
9 - (C)
10- (C)