Physics - Single MCQs (Page 24)

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Q231. Decibel is the unit of...Q232. To break a wire of one meter length, minimum 40 kg wt. is required. Then the wi...Q233. The escape velocity of a body from the earth is u. What is the escape velocity f...Q234. The diameter of rain-drop is 0.02 cm. If surface tension of water be 72 × 10-³...Q235. If the mean free path of atoms is doubled, then the pressure of gas will become...Q236. Two bodies having same mass 20 kg are moving in opposite directions, one with a ...Q237. Which of the following is a self adjusting force...Q238. A ball of mass 0.1 kg coming with speed 30 m/s strikes with a bat and returns in...Q239. The force acting on the bullet when it moves through the air towards a target ...Q240. What is the unit of the physical quantity "Inductance"?...