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hodyreva [135]
3 years ago
15

Please need help on this

Physics
1 answer:
kirill115 [55]3 years ago
8 0
The frequency cannot change, as it depends on the source. now, imagine light as a particle, when it's going through glass, which is a denser medium than air, is more tightly packed with particles than air is. think of it this way, will you walk faster in a crowd or on an empty street? going through the empty street (air) there are lesser objects to bump into so what do you think will happen to the speed now?
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