Question

SET
1
1
2
3
DISTANCE OF THE FLAME FROM THE LENS (cm)
60
40
30
24
15
DISTANCE OF THE SCREEN FROM THE LENS (cm)
20
24
30
40
50
4
5
() From the above table, find the focal length of the lens with outusing the lens formula.
a) f = 50cm b) f= 30cm c) f = 15cm d) f = 60cm
(11) Which set of observation is incorrect?
a) Set - 1
b) Set-2
c) Set - 3
d) Set - 5
(iii) In which case the size of the object and the image will be same?
a) u = 24cm
b) u = 60cm c) u = 30cm d) u = 40cm
(iv) Where should Rohit keep the object to get a virtual image?
a) at 30cm b) at 10cm
c) at 60cm
d) at 15cm
(v) What is the nature and size of the image formed in the case of set - 2?
a) Real, inverted and Enlarged. b) Virtual, erect and enlarged.
c) Real, inverted and diminished. d) virtual, erect and diminished
Activate Windo
(4) Go to PC pertings to
10096
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Answer 1

Answer:

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