DNA Sequence Analysis

Light

To obtain magnified erect image on a concave mirror, object should be held

At pole

At focus

Between P and f

Beyond 2f

If f is the focal length and R is the radius of curvature of a spherical mirror, then

R=f

R=2f

R=3f

R=4f

The image formed by a concave mirror is real, inverted and of same size as that of the object. The position of the object is

At C

At F

Between C and F

Beyond C

The image formed by a concave mirror is virtual, erect and magnified. The position of the object is

At F

At C.

At infinity

Between P and F

The image formed by a spherical mirror is virtual, erect and smaller in size. Whatever be the position of the object. The mirror is

Convex

Concave

Either convex or concave

Can not say

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