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Physics

261.

Which part of the flame is the hottest?

Answer: A

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262.

The wavelength of a wave is the distance between

Answer: D

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263.

What is the maximum velocity with which a body of mass 'm' must enter a vertical loop of radius 'R'so that it can complete the loop ?

Answer: D

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264.

The amount of water vapor in the air is

Answer: B

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265.

The maximum velocity upto which fluid motion is streamline is called

Answer: B

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266.

Materials for rain-proof coats and tents owe their water-proof properties to

Answer: A

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Answer: B

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268.

The velocity required to place a vehicle in orbit round the moon is _______ that required to place it in orbit round the earth

Answer: A

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Answer: C

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270.

In the electrical circuit of a house, the fuse acts as

Answer: C

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