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Physics

Physics
The atmospheric layer reflecting radio waves is called

Ionosphere
Stratosphere
Mesosphere
Ozonosphere

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Physics
The time period of a seconds pendulum is

0.5 second
2 seconds
1.5 second
1 second

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Physics
A copper disc has a hole. If the disc is heated, the size of the hole

Increases
No change
Decreases
First increases and than decreases

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Physics
Fiber optics cable used in communication, works on the principle of

Total internal reflection of light
Regular reflection of light
Refraction of light
Diffuse reflection of light

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Physics
Air coolers are more suitable for

Hot and humid climate
Hot and dry climate
Cool and humid climate
Cool and dry climate

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Physics
One can distinguish a telescope from a microscope by observing

Size of the lens
Length and size of the lens
Length
Colour

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MORE MCQ ON Physics

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