Physics Online GK Quiz -1 Question for All Govt Exam

1. The positron is called the antiparticle of the electron, because it

(A)has opposite charge

(B)has same mass

(C)annihilates with an electron

(D)collides with an electron

2. 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

3. Sunspots 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

4. Centripetal force needed to keep the moon in its orbit round the Earth is provided by

(A)Gravitational pull of Sun

(B)Gravitational pull of Sun

(C)Rotation about its own axis

(D)None of these

5. Primary colours are

(A)Red, blue and yellow

(B)Blue, green and yellow

(C)Green, red and yellow

(D)Red, blue and green

6. Control rods used in nuclear reactors are made of

(A)Stainless steel

(B)Graphite

(C)Cadmium alloy

(D)Plutonium

7. The lens used to rectify long sight is

(A)Concave lens

(B)Convex lens

(C)Plane concave lens

(D)Plane convex lens

8. When milk is churned, the cream separates from it is due to

(A)centrifugal force

(B)cohesive force

(C)frictional force

(D)gravitational force

9. The wire used in the filament of household bulbs has

(A)high resistance, high melting point

(B)high resistance, low melting point

(C)low resistance, high melting point

(D)low resistance, low melting point

10. When dispersion of white light takes place through a prism, the maximum deviation is suffered by which one of the following colours ?

(A)Red

(B)Yellow

(C)Green

(D)Violet

11. Positive rays in a discharge tube with perforated cathode travel

(A)parallel to the anode

(B)parallel to the cathode

(C)from cathode to anode

(D)from anode to cathode

12. The core of a transformer is laminated, so that

(A)ratio of the voltage across the secondary and primary is doubled

(B)the weight of the transformer can be kept low

(C)the rusting of the core is prevented

(D)energy loss due to eddy currents is minimised

13. A solar eclipse occurs when

(A)the sun, the moon and the earth are not in the same line

(B)the moon comes between the sun and the earth

(C)the earth comes between the sun and the moon

(D)the sun comes between the earth and the moon

Physics Online GK Quiz -1 Question for All Govt Exam

⇐ Go Back to GK English Home Section ⇐

Physics GK in English Quiz 1