KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics: Questions 238 - 241 of 250
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Question number: 238
Question number: 239
A hollow sphere has a small hole in it. On lowering the sphere in a tank of water, it is observed that water enters into the hollow sphere at a depth of 60 cm below the surface. Surface tension of water is . The diameter of the hole is,
Question number: 240
A 30 g bullet passes through a plate of mass 1 kg and finally comes to rest inside another plate of mass 2970 g. It makes the plates move from rest to same velocity. The percentage loss in velocity of bullet between the plates is –