Question

If an object of height 10 cm from a concave mirror of focal length 12cm, find the position,nature and height of the image .

Answer 1

POSITION:

1/F=1/V-1/U

1/12=1/V-1/-36

1/12-1/36=1/V

3-1/36=1/V

2/36=1/V

AFTER CANCELLATION

1/18=1/V

V=18

MAGNIFICATION;

M=-V/U

M=-18/-36

AFTER CANCELLATION

M=1/2

M=-2

HEIGHT OF IMAGE=-2xHEIGHT OF OBJECT

AS (-) SIGN IS THERE, IGNORE IT (-) SIGN JUST STATES THAT IMAGE IS INVERTED I.E BELOW THE AXIS....

NATURE:

----DIMNISHED

----BETWEEN F AND C

----REAL

----INVERTED

BRAINLY PLZZZZZ.....

HOPE THIS HELPS U... :)