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COMEDK2021PhysicsWaves and Sound

If frequencies are (v-1) and (v+2) , then find the value of beats.

Options

  1. A2
  2. B1
  3. C3
  4. D4

Correct answer

C. 3

Step-by-step solution

The beat frequency is defined as the absolute difference between the two given frequencies. Given frequencies are f₁ = v - 1 and f₂ = v + 2 . Beat frequency = |f₂ - f₁| Beat frequency = |(v + 2) - (v - 1)| Beat frequency = |v + 2 - v + 1| Beat frequency = |3| = 3 . Answer: 3

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