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JEE Advanced Model Paper 5 with solutions for online practice
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Question : 6
Total: 54
A converging lens of focal length 20 cm and refractive index
3
2
is coaxially placed in front of a convex mirror offocal length 5 cm. Their separation is d. A parallel beam of light incident on the lens returns as a parallel beamfrom the arrangement. Select the correct option(s)
The beam diameters of the incident and reflected beams must be the same
Value of d can be 10 cm
Value of d can be 20 cm
If the entire arrangement is immersed in water of refractive index
4
3
, then the path followed by incident beamremains unaltered
Validate
Solution:
Answer (A, B, C)
For image to be formed on same place ray shouldretrace its path.
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