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प्रश्न
Usually light travels faster than sound. However, when we switch a television set on the picture comes later than the sound. The reason
is that
पर्याय
in TV transmission sound is transmitted first and the picture is transmitted later
there is always a delay in the picture tube getting switched on
Emission of electrons from the picture tube takes time
The wiring for the picture tube is much longer compared to that for the speaker
MCQ
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उत्तर
Emission of electrons from the picture tube takes time
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General Science and Technology Current Affair (Entrance Exam)
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