Question

Which among the following is incorrect?

• A. In meld's experiment $p^{2}T$ remain constant. (p=loop, T=Tension)
• B. In Kundt's experiment distance between two heaps of powder is λ/2
• C. Quink's tube experiment is related with beats.
• D. Echo phenomena are related with reflection of sound.

Answer 1

Answer: (C)

The explanation of the statements are given below
(i) In meled's experiment p $\sqrt{T}$ =constant.
$⟹p^{2}T$ =constant
Hence, this statement is correct.
(ii) In Kundt's experiment distance between two heaps of powder is $\lambda /2$
Hence, this statement is correct
(iii) Quink's tube experiment is related to interference
hence the option is incorrect
(iv) Echo phenomena are related to the reflection of sound.
So, this statement is correct