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Physics

Physics
One billionth of a second is called

Millisecond
Nanosecond
Picoseconds
Microsecond

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Physics
The fact that the planets move around the Sun, not in circles but in ellipses, was first demonstrated by

Johannes Kepler
Galileo
Martin Luther
Copernicus

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Physics
Sound travels fastest in

Glass
Water
Air
Vacuum

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

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

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Physics
If density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio of velocity of sound?

0.16736111111111
0.084027777777778
0.044444444444444
0.052777777777778

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Physics
Hertz is the SI unit of

Frequency
Pressure
Power
Weight

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MORE MCQ ON Physics

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