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The device that produces an intense, monochromatic and coherent beam of light based on stimulated emission of photons from atoms, is called __________. (Laser, x-ray tube, discharge tube, cyclotron

Asked by Narendra Kumar Sharma 19/02/2015 Last Modified 19/02/2015

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which is the best tuition of 11th science CBSE in pune

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Conversion of one gram of matter to energy yields __________ joules of energy. (9 x 1013J, 9 x 1012J, 9 x 1011J, 9 x 1010J)

9x1013J

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A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory. There are 100 seniors, 150 juniors, and 200 sophomores who applied. Each senior’s name is placed in the lottery 3 times; each junior’s name, 2 times; and each sophomore’s name, 1 time. If a student’s name is chosen at random from the names in the lottery, what is the probability that a senior’s name will be chosen?

Probability is the ratio of no: of favourable outcome tototal out comes. Here total out comes = 3 times the total seniors+ 2 times the juniors + 1 times thesophomores = (3x100) +(2x150)+(1x200)=300+300+200...

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Discuss the salient features of viruses.

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The pressure and volume formula of a gas undergoing and an Adiabatic Change is __________. (PV =constant, PrV = constant, (PV)r= constant, PVr = constant)

P*(V^r) = constant

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