Question

Statement I: Sound produced by an open organ pipe is richer than the sound produced by a closed organ pipe.
Statement II: Outside air can enter the pipe from both ends, in case of open organ pipe.

• A. If both Statement I and Statement II are true and the Statement II is correct explanation of the Statement I
• B. If both Statement I and Statement II are true but the Statement II is not the correct explanation of the Statement II.
• C. If Statement I is true but Statement II is false
• D. If both the Statements are false.

Answer 1

Answer: (B)

Sound produced by an open organ pipe is richer because it contains all harmonics and frequency of fundamental note in an open organ pipe is twice the fundamental frequency in a closed organ pipe of same length.
Reason is also correct, but it is not explaining the assertion.