Explain the shining of an air bubble in water.

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Solution

For water – air interface, the critical angle is ${48.8}^{\circ}$ . When light travelling in water is incident at an angle greater than ${48.8}^{\circ}$ , the light suffers total internal reflection. So the air bubble in the water shines brilliantly.

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Explain the shining of an air bubble in water.

For water – air interface, the critical angle is 48.8∘. When light travelling in water is incident at an angle greater than 48.8∘, the light suffers total internal reflection. So the air bubble in the water shines brilliantly.

For water – air interface, the critical angle is ${48.8}^{\circ}$ . When light travelling in water is incident at an angle greater than ${48.8}^{\circ}$ , the light suffers total internal reflection. So the air bubble in the water shines brilliantly.