Question

Define the following (I) Wavelength, (ii) Echo . Aur thanks bhaiya.​

Answer 1

Explanation:

Wavelength- Wavelength can be defined as the distance between two successive crests or troughs of a wave. It is measured in the direction of the wave. ... Wavelength is inversely proportional to frequency. This means the longer the wavelength, lower the frequency.

Echo- An echo is a repetition or imitation of sound. When sound waves hit a hard surface they might reflect, making the sound bounce and repeat.

are usme thanks wali kya bat hai

Answer 2

Answer:

mujhe jo chaiye milta hai..

lol