A concave mirror is placed at the bottom of an empty tank with face upward and axis vertical. When sunlight falls normally on the mirror

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A concave mirror is placed at the bottom of an empty tank with face upward and axis vertical. When sunlight falls normally on the mirror, it is focused at distance of 32 cm from the mirror. If the tank filled with water (μ = 3/4 ) up to a height 20 cm then the sunlight will now get focused at
17
Nov
A concave mirror is placed at the bottom of an empty tank with face upward and axis vertical. When sunlight falls normally on the mirror, it is focused at distance of 32 cm from the mirror. If the tank filled with water (μ = 3/4 ) up to a height 20 cm then the sunlight [...]
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Tags: A concave mirror is placed at the bottom of an empty tank with face upward and axis vertical. When sunlight falls normally on the mirror , it is focused at distance of 32 cm from the mirror. If the tank filled with water (μ = 3/4 ) up to a height 20 cm then the sunlight will now get focused at ,