1. The proponents of electromagnetic induction theory were-

(A) Om

(B) Newton

(C) Faraday

(D) Volta

ANS. (C) Faraday

2. Which mirror is used near the driver's seat to give a rear view in vehicles?

(A) concave

(B) convex

(C) plane

(D) Ordinary

ANS. (B) Convex

3. Why do the stars twinkle in the sky?

(A) due to refraction of light

(B) due to reflection of light

(C) due to scattering of light

(D) due to full internal reflection of light

ANS. (A) due to refraction of light

4. The image of an object in human eyes is formed on which of the following parts?

(A) cornea

(B) Pupil

(C) Retina

(D) None of the above

ANS. (C) Retina

5. There is more difficulty in burning with steam than in boiling water, because the secret heat of steam is more than that of water?

(A) decreases

(B) is more

(C) is the same

(D) does not occur

ANS. (B) is more

6. What is an electric fuse coil made of?

(A) Copper

(B) Tin

(C) Alloys of copper and tin

(D) Iron and brass alloys

ANS. (C) Alloys of Copper and Tin

7. Properties of inertia

(A) Everything consists of

(B) is in some thing

(C) No object contains

(D) Only in a moving object

ANS. (A) is in every object

8. What is the humidity measuring device of the atmosphere?

(A) Hydrometer

(B) Hygrometer

(C) gravy meter

(D) manometer

ANS. (B) Hygrometer

9. Which medium has the highest speed of light?

(A) Vacuum

(B) water

(C) glass

(D) None of these

ANS. (A) Vacuum

10. In which medium can longitudinal waves be generated?

(A) solid

(B) Fluid

(C) in gas

(D) All three

ANS. (D) All three