A ray of light is incident on a lens parallel to its principal axis. After refraction, the ray passes through or appear to come from :

its first focus

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its optical centre

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its second focus

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the centre of curvature of its second surface

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Solution

The correct option is C its second focus
The parallel rays of light meet at a point on the principal axis after refraction by a convex lens or appear to come from a point on the principal axis after refraction by a concave lens. This point is known as the second focus of the lens.

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Similar questions

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.

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.

Q. A ray of light, after refraction through a convex lens emerges parallel to the principal axis. The incident ray when produced appear to come from a point on principal axis. Name the point :

A ray of light after refraction through a convex lens emerges parallel to the principal axis. (a) Draw a ray diagram to show it. (b) The incident ray passes through a point F on the principal axis. Name the point F.

Q. A ray of light coming parallel to the principal axis after passing through a convex lens, passes through its

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A ray of light is incident on a lens parallel to its principal axis. After refraction, the ray passes through or appear to come from :

The correct option is C its second focusThe parallel rays of light meet at a point on the principal axis after refraction by a convex lens or appear to come from a point on the principal axis after refraction by a concave lens. This point is known as the second focus of the lens.

The correct option is C its second focus
The parallel rays of light meet at a point on the principal axis after refraction by a convex lens or appear to come from a point on the principal axis after refraction by a concave lens. This point is known as the second focus of the lens.