Physics · 2022
JEE Main · 25 June 2022, Shift 1 · Q48
A signal of 100 THz frequency can be transmitted with maximum efficiency by:
A signal of $\displaystyle 100$ THz frequency can be transmitted with maximum efficiency by :
Official answer
(2)
Optical fibre
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JEE Main 2022 Physics question, with the answer from NTA’s final answer key. Where our answers come from.