A) They should keep on wearing their spectacles
B) They should take off their spectacles
C) They may keep on wearing or take off their spectacles, it makes no difference
D) They cannot use a microscope at all
Correct Answer: B
Solution :
Microscope is an .optical instrument used to increase the visual angle of near objects which arc too small to be seen by naked eye. So, spectacles should be removed while working with a microscope as image is magnified.
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