A 2 cm diameter coin rests flat on the bottom of a bowl in which the water is 20 cm deep - -4-3 - If the coin is viewed directly from above- what is its apparent diameter-

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Standard XI

Physics

Apparent Depth

A 2 cm diamet...

Question

A 2 cm diameter coin rests flat on the bottom of a bowl in which the water is 20 cm deep $(μ = \frac{4}{3})$ . If the coin is viewed directly from above, what is its apparent diameter?

2 cm

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1.5 cm

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2.67 cm

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1.67 cm

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Solution

The correct option is A 2 cm
For a plane refracting surface, the lateral magnification is 1. Thus, the image of the coin will be of the same size as the coin itself.

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A 2 cm diameter coin rests flat on the bottom of a bowl in which the water is 20 cm deep (μ=43). If the coin is viewed directly from above, what is its apparent diameter?

The correct option is A 2 cmFor a plane refracting surface, the lateral magnification is 1. Thus, the image of the coin will be of the same size as the coin itself.

A 2 cm diameter coin rests flat on the bottom of a bowl in which the water is 20 cm deep $(μ = \frac{4}{3})$ . If the coin is viewed directly from above, what is its apparent diameter?

The correct option is A 2 cm
For a plane refracting surface, the lateral magnification is 1. Thus, the image of the coin will be of the same size as the coin itself.