Why are the bubbles rising in the fish tank appear silvery?
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6
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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2
Answer:
because fish can respire and air can came out in form of bubbles.
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