NTSE Stage 2 SAT 2019 Exam Question Paper

Question : 68 of 100

Marks: +1, -0

Given below are two different graphs of variation of density (or pressure) of the medium with position (Fig.l) and with time (Fig.2) as a wave passes through the medium.

hat will be the speed of the wave in the given medium?

25 m/s
50 m/s
250 m/s
500 m/s

Validate

Solution:

From the Fig. (1), it is clear that,

λ=100cm

From Fig. (2), it is clear that,

T=2×10^{-3}s

As we know that the speed of wave,

v={nλ}/T

⇒100×10^{-2}/{2×10^{-3}}=500

m/s

Go to Question:

Prev Question

Next Question