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One of the following does not refer to the internal component of a klystron oscillator
(a)a collector plate
(b)a pair of plates
(c)a pair of catcher grids
(d)a pair of buncher grids

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Important Questions on Physics
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An echo-sounder in a trawler (fishing boat) receives an echo from a shoal of fish after it was sent. If the speed of sound in water is , how deep is the shoal?

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Find out which of the following statements regarding sound is false.

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A person clapped his hands near a cliff and heard the echo. The minimum distance of the cliff from the person if the speed of sound is taken as is

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In a longitudinal wave, the distance between the two consecutive compressions and two consecutive rarefactions is called _____.

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Which of the following units denotes the dimensions , where denotes the electric charge?

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The dimensional formula for the magnetic field is

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Dimensions of resistance in an electrical circuit, in terms of dimension of mass length time and current , would be

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In the relation : the dimensional formula for is :
