1. If one looks into a mirror and finds the image larger than normal, one conclude that the mirror is
a. Convex
b. Concave
Answer : B
2. Microwave frequency band is
a. 1-100 MHz
b. 100-1000 KHz
d. Above 1000MHz
Answer : D
3.The units of Length, Mass and Time are called
Answer : Fundamental units
4.Fathom is the unit for measuring
Answer : Depth of water
5. The fourth state of matter is
Answer : Plasma
6.Raman effect involves
Answer : Scattering of light
7. A red object, when seen through a thick blue glass, appears
Answer : Black
8.Hydro-Power is the term used for electricity produced through
Answer : Water
9. What is the nature of the item stored in a domestic cooking gas cylinder
a. Gas
b. Semisolid
d. Liquid
Answer : D
10. The heating element of an electric iron is made of
Answer : Nichrome
11. What is the working principle of a transformer
Answer : Electro magnetic induction
12. A capacitor used in electric circuit is to step up
Answer : Electric charge
13. Temperature of water used in hot water bag is in the range
Answer : 120 / 1490 F
14. Photosynthesis is maximum in
a. Green light
b. Blue light
d. Red light
Answer : D
15.The strongest force of nature is
a. Nuclear force
b. Gravitational force
d. Electrostatic force
Answer : B
16. Speed of light in a vacuum is
Answer : 299,792.458 km/sec
17. No current will flow between two charged bodies if they have the same
a. Potential
b. Resistance
d. Charge
Answer : A
18. The fuse wire in the main switch is of
a. Zero rating of current
b. The same rating as that o individual sections
d. A lesser rating than for individual sections
Answer : C
19. Acoustics is the study of
Answer : Sound
20. Rocket engine works on the principle of
: Newton’s third law
