Question

the distance between a consecutive crest and trough is 2x. The wavelength of the wave is

​

Answer 1

Answer:

Explanation:

But by the definition of wavelength we know that the wavelength is the distance between two consecutive crests or trough. According to the information given in the question, L is equal to the half of the wavelength. So, the wavelength will be 2L. Hence, the correct option is D, i.e., 2L.