In which position of the object will the magnification be -1 for (1) convex mirror 2) concave mirror 3) concave lens 4) convex lens ?

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Solution

In concave mirror - Object should be placed at Centre of curvature.
In Convex Mirror- magnification is always less than 1
In Convex Lens-Object is placed at 2f
In Concave Lens- It does'nt give Linear magnification(1).

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Similar questions

Q. Find out the correct option from the following.
(a) The magnification is positive for all virtual images and is negative for all real images.
(b) The magnification of concave lens and convex mirror is always positive where as the magnification of convex lens and concave mirror can be positive or negative depending on the position of the object before the lens.

Q. The magnification produced by a spherical lens and a spherical mirror is + 2.0.
(a) The lens and mirror are both concave
(b) The lens and mirror are both convex
(c) The lens is convex but the mirror is concave
(d) The lens is concave but the mirror is convex

Q. Question 19
In which of the following, the image of an object placed at infinity will be highly diminished and point sized?

(a) Concave mirror only
(b) Convex mirror only
(c) Convex lens only
(d) Concave mirror, convex mirror, concave lens and convex lens

Question 4

You are provided with a concave mirror, a convex mirror, a concave lens and a convex lens. To obtain an enlarged image of an object you can use either

(a) concave mirror or convex mirror.

(b) concave mirror or convex lens.

(d) concave lens or convex lens.

Why focal length of convex mirror and convex lens is positive while concave mirror and concave lens negative?

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In which position of the object will the magnification be -1 for (1) convex mirror 2) concave mirror 3) concave lens 4) convex lens ?

In concave mirror - Object should be placed at Centre of curvature. In Convex Mirror- magnification is always less than 1 In Convex Lens-Object is placed at 2f In Concave Lens- It does'nt give Linear magnification(1).

In concave mirror - Object should be placed at Centre of curvature.
In Convex Mirror- magnification is always less than 1
In Convex Lens-Object is placed at 2f
In Concave Lens- It does'nt give Linear magnification(1).