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Physics

Physics
Sound following a flash of lightning is called

Bolting
Thunder
Stoning
Cloud clash

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Physics
Which of the following is the fastest communication channel?

Optical fiber
Microwave
All are operating at nearly the same propagation speed
Radio wave

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Physics
Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit

visible light
radio waves
X-rays
ultraviolet light

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Physics
The absorption of ink by blotting paper involves:

Diffusion of ink through the blotting
Viscosity of ink
Siphon action
Capillary action phenomenon

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Physics
stars which appear single to the naked eye but are double when seen through a telescope are

quasars
asteroids
binaries
novas and supernovas

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Physics
Quality of transmission depends upon

Neither A nor B
Nature of medium only
Nature of signal only
Both (A) and (B)

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