an object is placed at a distance 10cm from a lens of power 4D .find the position and nature of image,so formed
Answers
Answered by
3
it is inverted and real
ishashu:
find distance of image from optical centre
it is 20 /3
no
it is placed at 29.9 cm from the lens
its simple
its 20 cm
wrong
you need to convert power into cm
Answered by
3
Answer:
You can use the formula of power
P=1/f
by the way you find focal length
and then use the formula of lens= 1/v-1/u=1/f
Similar questions