GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A radio
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A flashlight
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A drum
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A television
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Detailed explanation-1: -Non-luminous objects:-The objects that can not emit light energy by themselves are known as Non-luminous objects. Objects like the moon that do not give out or emit light of their own are Non-luminous objects. Moon is an example of a non-luminous object as we can see the moon because it reflects light from the sun.
Detailed explanation-2: -Examples of objects that produce sound are ringing of bell, musical instruments, honking of vehicles.
Detailed explanation-3: -In simple terms, sound energy comes from vibrations moving through something. Solids, liquids, and gases all transmit sound as energy waves. Sound energy is the result when a force, either sound or pressure, makes an object or substance vibrate. That energy moves through the substance in waves.