Physics · 2021
JEE Main · 26 August 2021, Shift 1 · Q8
Car B overtakes another car A at a relative speed of 40 ms^-1. How fast will the image of car B appear to move in the mirror of focal length 10 cm…
Car B overtakes another car A at a relative speed of $\displaystyle 40 \mathrm{~ms}^{-1}$. How fast will the image of car B appear to move in the mirror of focal length $\displaystyle 10$ cm fitted in car A, when the car B is $\displaystyle 1.9$ m away from the car A ?
Official answer
(1)
$\displaystyle 0.1 \mathrm{~ms}^{-1}$
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.