JEE Main 24 Feb 2021 Shift 2 Solved Paper

Section: Physics

Question : 29 of 90

Marks: +1, -0

Two cars are approaching each other at an equal speed of 7.2km∕h. When they see each other, both blow horns having frequency of 676Hz. The beat frequency heard by each driver will be ........ Hz.
[Velocity of sound in air is 340m∕s.]

[24 Feb 2021 Shift 2]

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