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Physics

Physics
Mach number is used in connection with the speed of

ships
sound
aircraft
spacecraft

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Physics
Burns caused by steam are much severe than those caused by boiling water because

Temperature of steam is higher
Steam pierces through the pores of body quickly
Steam has latent heat
Steam is gas and engulfs the body quickly

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Physics
Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s

1000
0.008
2000
0.016

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Physics
What is unit of Astronomical distance ?

Light year
Lux
Weber
Angstrom

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Physics
Which law is also called law of inertia ?

Newton third law
Newton first law
Newton second law
All of above

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Physics
How much calorie of energy is released by a boiled egg ?

50
60
40
77

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MORE MCQ ON Physics

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