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JEE Main 201910 AprilEvening Shift
Exam
JEE Main
Year
2019
Date
10 April
Shift
Evening Shift
Subject
Physics
Chapter
Waves and Sound

JEE Main 2019 · 10 April · Evening Shift · Physics · Waves and Sound

The correct figure that shows, schematically, the wave pattern...

The correct figure that shows, schematically, the wave pattern produced by the superposition of two waves of frequencies 9Hz9Hz and 11Hz11Hz, isThe correct figure that shows, schematically, the wave pattern produced by the superposition of two waves ofThe correct figure that shows, schematically, the wave pattern produced by the superposition of two waves ofThe correct figure that shows, schematically, the wave pattern produced by the superposition of two waves ofThe correct figure that shows, schematically, the wave pattern produced by the superposition of two waves of

Options

  1. AVelocity (v) and acceleration (a) in two systems of units 1 and 2 are related as v _ 2 = n m ^ 2 v _ 1 and a _ 2 = a _
  2. BVelocity (v) and acceleration (a) in two systems of units 1 and 2 are related as v _ 2 = n m ^ 2 v _ 1 and a _ 2 = a _
  3. CVelocity (v) and acceleration (a) in two systems of units 1 and 2 are related as v _ 2 = n m ^ 2 v _ 1 and a _ 2 = a _
  4. DVelocity (v) and acceleration (a) in two systems of units 1 and 2 are related as v _ 2 = n m ^ 2 v _ 1 and a _ 2 = a _

Correct answer

A. Velocity (v) and acceleration (a) in two systems of units 1 and 2 are related as v _ 2 = n m ^ 2 v _ 1 and a _ 2 = a _

Step-by-step solution

Beat frequency =11−9=2Hz= 11 - 9 = 2Hz
No.of maxima per second is 2.
Time period of beat =12s.= \dfrac{1}{2}s .
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