Question

1 .solve numerical problem.
. One whale fish says something to its friends 175 km away .How long will it be before the friend can hear this? (Speed of sound in water = 1531 m/s).​

Answer 1

Differentiate between

1 .Time period and Frequency.

Time period-i) The time taken by the wave to traverse one wavelength is called its time period.

ii) It is denoted by the symbol T and is measured in second (s)

Frequency- I) The number of oscillations completed by medium particle in one second is called the frequency of the wave.

ii) It is denoted by the symbol f and is measured in hertz (Hz)