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i need answer for the question which is in image format please check the attached image.

i need answer for the question which is in image format please check the attached image.

Question Image
Grade:12

1 Answers

Vikas TU
14149 Points
6 years ago
Dear Student,
Object distance = 40 cm
Focal length 20 cm
From the mirror formula
1/v+1/u = 1/f
1/v+ 1/40 = 1/20
1/v =1/40
V = 40 cm
Magnification size = -v/u
                                  = 40/40 = 1
Size of object = 1.5 cm
Then size of image will also be 1.5 cm.
Cheers!!
Regards,
Vikas (B. Tech. 4th year
Thapar University)

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