Question

JAnalyse the following observation table slowing variation of image distance (v) with object distance (u) m
dase of a convex lens and answer the questions that follows:
S. No.
Object distance, u (cm) | Image distance v (cm)
1.
- 90
+ 18
- 60
+ 20
3.
*** |
- 30
-30
+ 30
- 20
+ 60
- 18
+ 90
6.
(a)
(b)
(c)
- 10
+ 100
h
What is the focal length of the convex lens ? Give reason in support of your answer.
Write the serial number of that observations which is not correct. How did you arrive at this conclusion ?
Take an appropriate scale to draw ray diagram for the observation at S.No 4 and find the approximate
value of imagnification.​

Answer 1

Answer:

Explanation:

Not clear.......