Physics Which of the following is not true about X-rays? Have low penetrating power Can affect photographic plates Can be reflected or refracted Travel with the speed of light Have low penetrating power Can affect photographic plates Can be reflected or refracted Travel with the speed of light ANSWER DOWNLOAD EXAMIANS APP
Physics A man standing on a edge of a cliff throws a stone vertically upwards with a certain speed. He then throws another stone downwards with the same speed. Find the ratio of the speeds of the two stones when they hit the ground. 0.042361111111111 0.044444444444444 Cannot be found from the given information. 0.043055555555556 0.042361111111111 0.044444444444444 Cannot be found from the given information. 0.043055555555556 ANSWER DOWNLOAD EXAMIANS APP
Physics The mercury and sodium street lamps light up because of : Atomic emission Electron absorption Atomic absorption Electron emission Atomic emission Electron absorption Atomic absorption Electron emission ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following features of a tunnel diode is its drawback Instability due to negative resistance Very wide temperature range of operations Very low power consumptions Extremely high frequency response Instability due to negative resistance Very wide temperature range of operations Very low power consumptions Extremely high frequency response ANSWER DOWNLOAD EXAMIANS APP
Physics For a body moving with uniform acceleration its final velocity equals ________ Average velocity + initial velocity 2 x average velocity + initial velocity Average velocity - initial velocity 2 x average velocity - initial velocity Average velocity + initial velocity 2 x average velocity + initial velocity Average velocity - initial velocity 2 x average velocity - initial velocity ANSWER DOWNLOAD EXAMIANS APP
Physics Speed regulation of synchronous motor is Zero 0.25 0.01 0.005 Zero 0.25 0.01 0.005 ANSWER DOWNLOAD EXAMIANS APP
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