Question

Wave length if sound wave having frequency 2khz is 35cm how much time will it take a distance 1500m

Answer 1

Answer:

Explanation:

2kHz = 20,000Hz                 35cm = 0.35m

v=fλ (wavespeed = frequency x wavelength): v = 20000 x 0.35 = 7000 ms^1

s=d/t (speed = distance/time) rearranges to give t=d/s:

7000/1500 = 4.67s (3 s.f)

Answer 2

Explanation:

Given Wave length if sound wave having frequency 2 k hz is 35 cm how much time will it take a distance 1500 m

• Frequency ν = 2 k hz = 2000 hz
• Wave length λ = 35 cm = 35 / 100 = 0.35 m
• Distance d = 1500 m
• We know that speed in sound wave will be v = νλ
•                                                                       = 2000 x 0.35
•                                                                     = 700 m / s
• Also time t = d / v
•                  = 1500 / 700
•              So t = 15 /  7
•        So t = 2.14 secs

Reference link will be

https://brainly.in/question/1145656