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Physics

Physics
Which Color has the Longest Wavelength?

Red
Yellow
White
Violet

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Physics
Which of the following is a device designed to protect electrical devices from voltage spikes?

Surge protector
Heat protector
Current unloader
Voltage unloader

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Physics
Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from

west
east
northeast
southeast

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Physics
Ball bearings are used in cycles, scooters etc to

None of these
Reduce the friction between ground and the whee
Increase the friction between the wheel and the axle
Reduce the friction between the wheel and the axle

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Physics
Pure water is bad conductor of electricity because it is

A non-polar solvent
Not volatile
A very good solvent
Feebly ionized

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Physics
Hot water is poured simultaneously in four metallic tumblers painted outside with different paints. After some time the water will be found to have cooled most in the tumbler painted.

Rough black
Shining black
Shining white
Rough white

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MORE MCQ ON Physics

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