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
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Q.15 ANS IS WRONG STRONGEST FORCE IN NATURE NUCLEAR FORCE
respected sir, this website very useful for to improve our physics knowledge.thanks once again.
d.k agarwAL UR CORRECT STRONGEST FORCE IS NUCLEAR FORCE