Question

Why are the bubbles rising in the fish tank appear silvery?

Answer 1

Answer:

Light rays before striking the air bubbles have to travel through water. these light rays which strike the air bubbles at angles greater than critical angle for water-air surface are totally reflected and it is because of these reflected rays that the air bubbles appear silvery.

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Answer 2

Answer:

because fish can respire and air can came out in form of bubbles.

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