1
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A wire of length ' $L$ ' and linear density ' $m$ ' is stretched between two rigid supports with tension ' $T$ '. It is observed that wire resonates in the $\mathrm{P}^{\text {th }}$ harmonic at a frequency of 320 Hz and resonates again at next higher frequency of 400 Hz . The value of ' $p$ ' is

A
2
B
4
C
8
D
10
2
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The frequency of two tuning forks A and B are respectively $1.4 \%$ more and $2.6 \%$ less than that of the tuning fork C . When A and B are sounded together, 10 beats are produced in 1 second. The frequency of tuning fork C is

A
250 Hz
B
300 Hz
C
340 Hz
D
400 Hz
3
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A resonance tube closed at one end is of height 1.5 m . A tuning fork of frequency 340 Hz is vibrating above the tube. Water is poured in the tube gradually. The minimum height of water column for which resonance is obtained is (Neglect end correction, speed of sound in air $=340 \mathrm{~m} / \mathrm{s}$ )

A
75 cm
B
50 cm
C
30 cm
D
25 cm
4
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

At the poles of earth, a stretched wire of a given length vibrates in unison with a tuning fork. At the equator of earth, for same setting, to produce resonance with same fork, the vibrating length of wire

A
should be decreased.
B
should be increased.
C
should be same.
D
should be three times the original.
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