Distance between focus and centre of curvature is equal to-half of radius of curvatureradius of curvatureobject distanceheight of the mirror

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Standard VII

Physics

Spherical Lens

Distance betw...

Question

Distance between focus and centre of curvature is equal to ___.

half of radius of curvature

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radius of curvature

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height of the mirror

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object distance

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Solution

The correct option is A half of radius of curvature
Focus is the midpoint between the pole and the centre of curvature of a mirror or lens and the distance between pole and the centre of curvature is called the radius of curvature. So, the required distance is half of radius of curvature.

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Similar questions

Q. The real image formed by a concave mirror is smaller than the object if the object is:

(a) between centre of curvature and focus
(b) at a distance greater than radius of curvature
(c) at a distance equal to radius of curvature
(d) at a distance equal to focal length

A concave mirror produces a magnification of + 4. The object is placed : (a) at the focus (b) between focus and centre of curvature (c) between focus and pole (d) beyond the centre of curvature

Q. Distance between focus and centre of curvature is equal to .

Q. Draw ray diagrams showing the image formation by a concave mirror when an object is placed

(a) between pole and focus of the mirror
(b) between focus and centre of curvature of the mirror
(c) at centre of curvature of the mirror
(d) a little beyond centre of curvature of the mirror

Q. Question 3
Under which of the conditions a concave mirror can form a real image larger than the actual object?

(a) When the object is kept at a distance equal to its radius of curvature.
(b) When object is kept at a distance less than its focal length.
(c) When object is placed between the focus and centre of curvature.
(d) When object is kept at a distance greater than its radius of curvature.

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Distance between focus and centre of curvature is equal to ___.

The correct option is A half of radius of curvatureFocus is the midpoint between the pole and the centre of curvature of a mirror or lens and the distance between pole and the centre of curvature is called the radius of curvature. So, the required distance is half of radius of curvature.

The correct option is A half of radius of curvature
Focus is the midpoint between the pole and the centre of curvature of a mirror or lens and the distance between pole and the centre of curvature is called the radius of curvature. So, the required distance is half of radius of curvature.