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General Science
➤ Physics ➤ 1
Question 86
Q86.
Of the following natural phenomena, tell which one known in Sanskrit as 'deer's thirst'?
Rainbow
Halo
Earthshine
Mirage
Question 87
Q87.
Inside an aeroplane, flying at a high altitude,
the pressure inside is less than the pressure outside
normal humidity and partial vacuum are maintained
normal atmospheric pressure is maintained by the use of air pumps
the pressure is the same as that outside
Question 88
Q88.
Sound travels with a different speed in media. In what order does the velocity of sound increase in these media?
Water, iron and air
Air, water and iron
Iron, air and water
Iron, water and air
Question 89
Q89.
Sound travels at the fastest speed in
steel
water
air
vacuum
Question 90
Q90.
oil raise up the wick in a lamp. The principle involves
the diffusion of oil through the wick
capillary action phenomenon
the liquid state of oil
volatility of oil
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