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Physics

Physics
Decibel is a term connected with :

Sound
Water
Soil
Air

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Physics
Flywheel is an important part of a steam engine because it :

Decreases the moment of inertia
Gives strength to the engine
Helps the engine in keeping the speed uniform
Accelerates the speed of the engine

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Physics
In which one of the following the phenomenon of total internal reflection of light is used ?

Twinkling of stars
Formation of rainbow
Working of binoculars
Formation of mirage

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Physics
Green house effect is the heating up of the Earth's atmosphere which is due to

X-rays
G-rays
The ultraviolet rays
The infra-red rays

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Physics
What is the SI unit of Power?

Newton
Watt
Pascal
Boyle

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Physics
Optical fiber works on the principle of

Total internal reflection
Refraction
Interference
Scattering

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MORE MCQ ON Physics

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