Question

AM ZUU
1.
A microscope is focussed on a mark on a piece
of paper and then a slab of glass of thickness 3
cm and refractive index 1.5 is placed over the mark,
How should the microscope be moved to get the
mark in focus again :-
(1) 1 cm upward
(2) 4.5 cm downward
(3) 1 cm downward
(4) 2 cm upward​

Answer 1

Answer:

2 4.5 cm downward...........

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Answer 2

Answer:

(1) 1 cm upward

answer is correct or not