The diagram shows a point source P inside a water container. Four rays A, B, C and D starting from P are shown up to the water surface. Which of the following ray(s) will come out of the water-air interface. (Given $n_{w} = \sqrt 2$

Only A and B

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Only B, C, and D

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Only C and D

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Only A

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Solution

The correct option is D Only A

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The diagram shows a point source P inside a water container. Four rays A, B, C and D starting from P are shown up to the water surface. Which of the following ray(s) will come out of the water-air interface. (Given nw = √2

The correct option is D Only A

The diagram shows a point source P inside a water container. Four rays A, B, C and D starting from P are shown up to the water surface. Which of the following ray(s) will come out of the water-air interface. (Given $n_{w} = \sqrt 2$