Question

Calculate the magnification if an object of height 3 cm kept in front of a concave mirror gives a real image of size 6 cm.​

Answer 1

Answer:

Magnification is +2 .

Explanation:

To find : Magnification of the image.

Solution :

Given that,

• Height of object is 3 cm.
• Height of image is 6 cm.
• In front of a concave mirror.

We know,

Magnification produced by a mirror is equal to the ratio of the height of the image to the height of the object.

Mathematically,

• m = h'/h

[Where, h' is height of image and h is height of object]

Put h' and h in formula :

$\implies$ m = 6/3

$\implies$ m = 2

Therefore,

Magnification is +2.

Answer 2

${ \huge{ \boxed{ \bf{\underline{ \red{Answer}}}}}} : -$

The Magnification produced by mirror is equal to the ratio of the height of the image to height of object .

${ \bf m = \dfrac{h'}{h} }$

substituting ,

$\sf m = \dfrac{h}{h}$

$\sf m = \dfrac{6}{3}$

$\sf m = 2$

Hence ,

The magnificence of the image is 2.

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