1(xi)
Assertion (A) : As the level of water in a tall measuring cylinder kept under running tap rises, the pitch of sound gradually increases.
Reason (R) : Frequency of sound is inversely proportional to the length of the water column.
- (a)Both (A) and (R) are true and (R) is correct explanation of (A).
- (b)Both (A) and (R) are true and (R) is not the correct explanation of (A).
- (c)(A) is true but (R) is false.
- (d)(A) is false but (R) is true.
Show SolutionHide Solution↓
(A) is true but (R) is false.
Explanation:
Assertion (A) is true because as the water column increases, air column decreases, frequency increases.
Reason (R) is false because the frequency is directly proportional to the length of water column.