For which of the following conditions, a ray will pass undeviated through the lens :

If it is incident towards the optical centre of the lens

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If it is incident parallel to the principal axis of the lens

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There is no such condition

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Can't say

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Solution

The correct option is A If it is incident towards the optical centre of the lens
Optical center is the point through which any ray passes undeviated. It the the center of the lens.

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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 :

(a) its optical centre

(b) its first focus

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

A ray light incident on a lens parallel to its principal axis, after refraction passes through or appears to come from :

(a) its first focus

(b) its optical centre

(d) the centre of curvation of its second surface.

State whether the following statements are 'true' or 'false' by writing T/F against them.

(a) A convex lens has a divergent action and a concave lens has a convergent action.

(b) A concave lens, if kept at a proper distance from an object, can form its real image.

(d) A ray of light incident at the optical centre of lens, passes undeviated after refraction.

(e) A concave lens forms a magnified or diminished image depending on the distance of object from it.

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