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Physics · 2020
JEE Main · 7 January 2020, Shift 1 · Q16
If we need a magnification of 375 from a compound microscope of tube length 150 mm and an objective of focal length 5 mm, the focal length of the…
If we need a magnification of $\displaystyle 375$ from a compound microscope of tube length $\displaystyle 150$ mm and an objective of focal length $\displaystyle 5$ mm , the focal length of the eye-piece, should be close to :
Official answer
(1)
$\displaystyle 22$ mm
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.