Question

A 16 cm long pencil is placed as shown in figure. The central point C is 45 cm away from a 20 cm focal length lens and 15 cm above the optic axis. Find the length of image.

151700
expand
A

14.2 cm

B

12.3 cm

C

17.1 cm

D

4.5 cm

Medium
Updated on : 2022-09-05
Solution
verified
Verified by Toppr
Correct option is C)

For point C 
Using Thus co-ordinates of are (36.-12)
For point B 
Thus coordinates of are (33,-6.1)
For point A 
Thus coordinates of are (40.7,-21.4)
Length of image .

Solve any question of Ray Optics and Optical Instrument with:-
Was this answer helpful?
upvote 0
downvote0
Similar questionsstar-struck