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Physics

Physics
Shaving mirror is

Parabolic
Convex
Concave
Plane

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Physics
Speed of sound is the greatest in :

Glass
Glycerine
Water
Air

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Physics
It is easy to burst a gas-filled balloon with a needle than with a nail. It is because

Nail is more longer than needle.
Nail exerts more pressure than needle on the balloon.
Needle exerts more pressure than nail on the balloon.
Gas is reactive with the needle.

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Physics
For a ray of light to suffer total internal reflection it has to pass from :

Glass to water
Air to glass
Water to glass
Air to water

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Physics
Which Color has the Longest Wavelength?

Yellow
White
Red
Violet

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Physics
The redness in atmosphere at Sunrise and Sunset is due to :

Scattering of light
Refraction of light
Dispersion of light
Reflection of light

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MORE MCQ ON Physics

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