PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free Demo1. Suppose a stick is struck against a frying pan in a vacuum. Will the frying pan vibrate? Will we be able to hear the sound? Explain.
, the frying pan , but we the vibration of sound because pan is being hit by the stick but sound in a vacuum.
2. Two astronauts are floating close to each other in space. Can they talk to each other without using any special device? Give reasons.
, they to each other without using any special device because there is in space and sound medium to travel.
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