Question

If an object is placed at a distance of 20cm from a concave mirror having focal length of 15cm. a) Where we will get the image( image distance)? b) What are the nature of this image?​

Answer 1

Answer:

6cm

Explanation:

Given, object distance, u =10cm

focal length,f = 15 cm

By mirror formula, 1/v = 1/f - 1/u

1/15 -1/10 = 5/30

v = 6cm

Image is formed 6cm in front of the mirror.

So the image is real and inverted