If light source is at focus of concave lens- then after refraction the ray of light will - will never be parallel to principal axis nbsp-will converge at the centre of curvature-be reflected back-parallel to principal axis-

The correct option is A will never be parallel to principal axis nbsp; By drawing normal at both the curved surfaces and following Snell's law we see the ray ...

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Standard X

Physics

Concave Lens

If light sour...

Question

If light source is at focus of concave lens, then after refraction the ray of light will ____________.

parallel to principal axis

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will converge at the centre of curvature.

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will never be parallel to principal axis

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be reflected back.

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Solution

The correct option is C
will never be parallel to principal axis

By drawing normal at both the curved surfaces and following Snell's law we see the rays are becoming even more divergent and not parallel.

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Similar questions

A ray of light after refraction through a lens emerges parallel to the principal axis of the lens. The incident ray passes through :

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(b) its first focus

(d) the centre of curvature of the first surface.

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If light source is at focus of concave lens, then after refraction the ray of light will ____________.

The correct option is C will never be parallel to principal axis By drawing normal at both the curved surfaces and following Snell's law we see the rays are becoming even more divergent and not parallel.

The correct option is C
will never be parallel to principal axis

By drawing normal at both the curved surfaces and following Snell's law we see the rays are becoming even more divergent and not parallel.