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A coin is placed at the focal point of a converging lens.

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What do you mean by convex and concave lens. What are their different types?

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What is critical angle?

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State the conditions for total internal reflection.

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What is meant by the term total internal reflection?

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State the laws of refraction of light.

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Define the following terms used in refraction:

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Define refraction of light Describe the passage of light through parallel sided transparent material.

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What are the sign conventions for concave and convex mirror?

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Define mirror formula. Also write its equation.

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Describe the characteristics of focus of a concave and a convex mirror.

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How are focal length and radius of curvature related to each other?

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Why convex mirrors are fixed on the blind turns on the roads of the mountains?

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Which mirror is used in motorcycles and automobiles?

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Why a concave mirror is used for makeup or shaving?

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Why we take the principal focus of a concave mirror as real and a convex mirror as virtual?

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How light is reflected through spherical mirrors?

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Define the following terms:

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Define spherical mirrors. What are its types?

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What do you mean regular and irregular reflection of light?

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