InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
A concave lens of focal length 15cm forms an image 10cm from the lens. How far is the object placed from the lens? Draw the ray diagram. |
|
Answer» Solution :Focal LENGTH of concave lens `(OF_1)`,f=-15cm Image distance, `v=-10cm` ACCORDING to the lens FORMULA, `1/v-1/u=1/f` `1/u=1/v-1/f` `=(-1)/(10)-1/(-15)=(-1)/(10)+1/(15)=(-5)/(150)` u=-30cm |
|