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1
MHT CET 2025 26th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

In Sonometer experiment, the frequency of a tuning fork used is 288 Hz . Harmonics will 'NOT' be produced at the frequency

A
288 Hz
B
576 Hz
C
844 Hz
D
864 Hz
2
MHT CET 2025 25th April Evening Shift
MCQ (Single Correct Answer)
+1
-0
The fundamental frequencies of vibrations of air column in pipe open at both ends and in pipe closed at one end are ' $\mathrm{n}_1$ ' and ' $\mathrm{n}_2$ ' respectively, then
A
$\mathrm{n}_1=\mathrm{n}_2$
B
$\mathrm{n}_1=2 \mathrm{n}_2$
C
$\quad 2 n_1=n_2$
D
$3 n_1=4 n_2$
3
MHT CET 2025 25th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

In an open end organ pipe of length ' $L$ ', if the velocity of sound is ' V ', then the fundamental frequency will be (Neglect end correction)

A
$\frac{\mathrm{V}}{2 \mathrm{~L}}$ and all harmonics are present.
B
$\frac{\mathrm{V}}{4 \mathrm{~L}}$ and all harmonics are present.
C
$\frac{\mathrm{V}}{2 \mathrm{~L}}$ and even harmonics are present.
D
$\frac{\mathrm{V}}{4 \mathrm{~L}}$ and even harmonics are present.
4
MHT CET 2025 25th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

At what speed should a source of sound move so that the observer finds the apparent frequency equal to half the original frequency?

A
$\frac{\mathrm{V}}{2}$
B
2 V
C
$\frac{\mathrm{V}}{4}$
D
V
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