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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 - Current Affairs Including General Knowledge

MCQ

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

Options

  • 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

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Solution

Emission of electrons from the picture tube takes time

Concept: General Science (Entrance Exam)
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