Question

wavelength of a wave travelling at a speed of 340 ms-1 is 170 cm. It's frequency is ______​

Answer 1

Answer:

200Hz

Explanation:

speed = wavelength*frequency;

340 = (170/100)*f;        170cm =170/100 m

f = 340*100/170;

f = 200Hz

Answer 2

Answer:

speed of a wave= frequency × wavelength

from this equation we can easily get the answer:

it is given that:

wavelength=170m

speed=340ms-1

frequency=?

From the above equation:

Speed = wavelength×frequency

implies

340= 170 × frequency

frequency=340÷170

frequency=2Hz

Frequency of the wave is 2Hz