A Best Way To Crack Gorenment Job Exams

General Knowledge Objective Questions { Physics }



29. An ice block with a piece of lead embedded in it floats in water. If ice melts the water level ?
A.Rise
B.Falls
C.Remains same
D.Falls first and that rises

30. The velocity of heat radiation in vacuum is?
A.Equal to that of light
B.Less than that of light
C.Greater than that of light
D.Equal to that of sound

31. The plastic material commonly used for making gear wheels is?
A.Polyesters
B.Nylons
C.Bakelite
D.Polystyrene

32. Ultraviolet radiations of the Sun do not reach the earth because earth's atmosphere is surrounded by ?
A.Carbon dioxide
B.Ammonia
C.Chlorine
D.Ozone

33. "Curie" is unit of ?
A.Radioactivity
B.Temperature
C.Heat
D.Energy

34. Which of the following is used in oven ?
A.X-rays
B.UV rays
C.Microwaves
D.Radio waves

35. When heated from 00 to 100C volume of a given mass of water will ?
A.Increase gradually
B.Decrease gradually
C.Increase and then will decrease
D.Decrease and then will increase

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