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Concepts Of Physics MCQ Edition [Volume 1]

Exam: Concepts Of Physics MCQ Edition [Volume 1]
Subject: Physics
Chapter: Rest and Motion Kinematics

Concepts Of Physics MCQ Edition [Volume 1] · Physics · Rest and Motion Kinematics

Suppose A and B in the previous problem change their positions in...

Suppose

A

and

B

in the previous problem change their positions in such a way that the line joining them becomes perpendicular to the direction of wind while maintaining the separation

x

. What will be the time lag

B

finds between seeing and hearing the drum beating by

A

?

Options

A $\dfrac{x}{v + u}$
B $\dfrac{x}{v - u}$
C $\dfrac{x}{\sqrt{v^2 - u^2}}$
D $\dfrac{x}{\sqrt{v^2 + u^2}}$

Correct answer

C. $\dfrac{x}{\sqrt{v^2 - u^2}}$

Step-by-step solution

\dfrac{x}{\sqrt{v^2 - u^2}}

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