Given,
m = 1/3
Using = 1/v+1/u=1/f
Calculating u,
u = – 80 cm.
The image is real and inverted so the mirror is concave.
Size of the image of an object by a mirror having a focal length of 20 cm is observed to be reduced to 1/3rd of its size. At what distance the object has been placed from the mirror? What is the nature of the image and the mirror?
Size of the image of an object by a mirror having a focal length of 20 cm is observed to be reduced to 1/3rd of its size. At what distance the object has been placed from the mirror? What is the nature of the image and the mirror?