Question

4 cm tall object placed in front of a concave mirror of focal length 12cm.Object is placed at 24 cm from pole of the mirror. Draw diagram by choosing appropriate scale and determine position , size and nature of the image from the diagram drawn .

Answer 1

Answer:

size=4cm

nature=12cm

position=24cm

Explanation:

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Answer 2

GIVEN :

Focal length,f = -12cm,

Object distance , u = -24cm = 2f = C

TO FIND :

position , size and nature of the image.

SOLUTION:

◆Object at C of a concave mirror gives real , inverted , image of same size in C .

◆Checking algebraically,

Mirror formula,

I/f = 1/u + 1/v

1/ -12 = 1/-24 + 1/v

v = -24 cm

◆Magnification ,m = -v/u = hi /ho

m = -24/-24 , hi =ho

Image size = object size.

ANSWER :

IMAGE AT C, IS REAL , INVERTED , AND OF SAME SIZE.

Refer the attachment .