The angle which subtends the periphery of the spherical mirror at the centre of curvature is called:

angular aperture

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glancing angle

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critical angle

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none of these

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Solution

The correct option is A angular aperture
distance between extreme points on the periphery of the spherical mirror is called linear aperture and the angle which the periphery of the spherical mirror subtends at the centre of curvature is called angular aperture.

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Similar questions

The centre of the sphere of which the spherical mirror forms a part is called centre of curvature.

A ray through the Centre of Curvature hitting the spherical mirror makes an angle of __________ with the normal.

θ = 30^{o}

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