Physics MCQ Questions Answers General Knowledge Set

16)The space waves which are affected seriously by atmospheric conditions are

a) MF0

b) HF

c) VHF

d) UHF

View Answer
Option – d)

17)Which one among the following has the highest energy?

a) blue light

b) green light

c) red light

d) yellow light

View Answer
Option – a)

18) The power of lens is-2D.What is its focal length?

a) 2 m

b) 1.5 m

c) 1.0 m

d) 0.5 m

View Answer
Option – d)

19) A radar beam consist of

a) X-rays

b) infrared rays

c) ultraviolet-rays

d) microwaves

View Answer
Option – d)

20) When a body is immersed in a liquid,it force acting on it is—

a) Upthrust

b) Weight

c) Mass

d) Both

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