First slide

Travelling wave

Question

The equation of a wave travelling in a string can be written as $y = 3 cosπ (100 t - x)$ . Its wavelength is

Easy

A

100 cm
B

2 cm
C

5 cm
D

None of the above

Solution

Comparing the given equation with $y = acos (ω t - kx)$
We get $k = \frac{2 π}{λ} = π \Rightarrow λ = 2 cm$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App