1
NEET 2025
MCQ (Single Correct Answer)
+4
-1
Change Language
 

A pipe open at both ends has a fundamental frequency $f$ in air. The pipe is now dipped vertically in a water drum to half of its length. The fundamental frequency of the air column is now equal to:

A
$\frac{3 f}{2}$
B
$2 f$
C
$\frac{f}{2}$
D
$f$
2
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

The displacement of a travelling wave $$y=C \sin \frac{2 \pi}{\lambda}$$ (at $$-x$$) where $$t$$ is time, $$x$$ is distance and $$\lambda$$ is the wavelength, all in S.I. units. Then the frequency of the wave is

A
$$\frac{2 \pi \lambda}{a}$$
B
$$\frac{2 \pi a}{\lambda}$$
C
$$\frac{\lambda}{a}$$
D
$$\frac{a}{\lambda}$$
3
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

The $$4^{\text {th }}$$ overtone of a closed organ pipe is same as that of $$3^{\text {rd }}$$ overtone of an open pipe. The ratio of the length of the closed pipe to the length of the open pipe is :

A
8 : 9
B
9 : 7
C
9 : 8
D
7 : 9
4
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

The ratio of frequencies of fundamental harmonic produced by an open pipe to that of closed pipe having the same length is

A
$$2: 1$$
B
$$1: 3$$
C
$$3: 1$$
D
$$1: 2$$
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