Car B overtakes another car A at a relative speed of \(40{\mathrm{ms}}^{-1}\). How fast will the image of car B appear to move in the mirror of focal length 10 cm fitted in car A, when the car B is 1.9 m away from the car A?

[JEE Main 2021, 26 Aug (Shift 1)]

Question

Car B overtakes another car A at a relative speed of \(40{\mathrm{ms}}^{-1}\). How fast will the image of car B appear to move in the mirror of focal length 10 cm fitted in car A, when the car B is 1.9 m away from the car A?

[JEE Main 2021, 26 Aug (Shift 1)]

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Car B overtakes another car A at a relative speed of \(40{\mathrm{ms}}^{-1}\). How fast will the image of car B appear t…

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