When a fish in a pond looks upward at an angle 45 degree, does it see the sky above the waters surface or a reflection from the water- air boundary of the bottom of the pond? Class 10 only for holiday homework
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Answer:
A fish sees the sky (as well as some reflection from the bottom) when it looks upward at 45 degrees because the critical angle is 48 degrees for water. If the fish looks at and beyond 48 degrees, it sees only a reflection of the bottom.
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Answer:
yes it can see the sky. here fish is located in the denser medium and the sky is in rarer medium. the light ray is travelling from denser medium to the rarer medium. so there is a possibility of total internal reflection. so we have to calculate the critical angle for water-air interface.
Explanation:
Applying snells law,
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