Question

For the image formation in a concave mirror, the object distance is 5 cm and the image distance is 15 cm on the same side as that of the object. Find the magnification and nature of the image.

• A. Magnification= 3, nature= real and inverted
• B. Magnification= 3, nature= virtual and upright
• C. Magnification= -3, nature= real and inverted
• D. Magnification= -3, nature= virtual and inverted

Answer 1

The correct option is C

Magnification= -3, nature= real and inverted

Given, the object distance u= -5 cm

The image distance v= -15 cm

Magnification, m= $-\frac{v}{u}$

= $-\frac{-15}{-5}$

= - 3

Thus, the image formed is magnified, real and inverted.