JEE MAIN - Physics (2019 - 10th April Evening Slot - No. 11) | ExamPlay

JEE MAIN - Physics (2019 - 10th April Evening Slot - No. 11)

The correct figure that shows, schematically, the wave pattern produced by superposition of two waves of frequencies 9 Hz and 11 Hz, is :

JEE Main 2019 (Online) 10th April Evening Slot Physics - Waves Question 87 English Option 1

JEE Main 2019 (Online) 10th April Evening Slot Physics - Waves Question 87 English Option 2

JEE Main 2019 (Online) 10th April Evening Slot Physics - Waves Question 87 English Option 3

JEE Main 2019 (Online) 10th April Evening Slot Physics - Waves Question 87 English Option 4

Explanation

Beat frequency = |f₁ – f₂| = 11 – 9 = 2 Hz

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