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A microscope is focussed on a point obje...

A microscope is focussed on a point object, and then its objective is raised through a height of 2cm when a glass slab of refractive index 1.5 is placed over this point object such that it is focussed again. The thickness of the glass slab is

A

6cm

B

3cm

C

2cm

D

1.5cm

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The correct Answer is:
A
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AAKASH SERIES-GEOMETRICAL OPTICS-LECTURE SHEET (EXERCISE-II (LEVEL-II (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS))
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