A sphereical mirrow is ued to form a real image of a real object. The image is l

Question

A sphereical mirrow is ued to form a real image of a real object. The image is located 4 meters from the object. The image will be 3 times larger than the original object.

a) what type of mirror needs to be used?

b) what is do, the distance between the object and the mirror?

1. A spherical mirror is to be used to form a real image of a real object. The image is located 4 meter from the object. The image will be 3 times larger than the original object (Mas-dildo -3) a) What type of mirror needs to be used? Concave minn w wriu tan m neal in sno b) What is do, the distance between the object and the mirror? c) What is the radius of curvature of the mirror?

Explanation / Answer

d1 = -4 (For real image due to concave mirror)

Magnification = -3 (Real image-always inverted)

Applying the given formula,

-(-4)/ do = -3

do = -4/3 = -1.33

f 2 = R

and 1/f = 1/v + 1/u

f = vu / (v+u) = -4 x -4/3 / -(4+4/3) = - 4 / ( 3 + 1) = -1

So, Radius of curvature = 2

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