Question

A concave mirror produce 10cm long image of an object of an height 2cm .what is the magnification produced?

Answer 1

Given,

height of image= -10cm

height of object= +2cm

To Find,

Magnification produced by the concave mirror.

Solution,

The formula used to calculate the magnification produced by the mirror is

magnification, m = height of image/height of object

                            = - 10/ +2

                            = -5

Since the magnification comes out to be -5 which means that the nature of the image is real and erect.

Hence, the magnification produces by the concave mirror is -5.

Answer 2

Answer:

The magnification produced by the concave mirror is equal to ±5

Explanation:

Magnification:

• Magnification is defined as the measure of the size of an image compared to the size of an object.
• Magnified images are produced by lenses and curved mirrors.
• The formula to calculate the magnification is:

                        $magnification,m=$±($\frac{height of image}{height of object}$)

• Magnification has no units,because it is a ratio of two lengths.

Step 1:

Given, height of image=10cm

           height of object=2cm

To calculate the magnification,we use the formula:

               $magnification,m=$±($\frac{10}{2}$)

                                        $m=$±$(5)$

The magnification produced is equal to ±5.