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

With what velocity an observer should move relative to a stationary source so that a sound of triple the frequency of source is heard by an observer?

A
Same as velocity of sound towards the source.
B
Same as velocity of sound away from the source.
C
Half the velocity of sound towards the source.
D
Twice the velocity of sound towards the source.
2
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The length of a sonometer wire 'AB' is 110 cm . Where should the two bridges be placed from end ' $A$ ' to divide the wire in three segments whose fundamental frequencies are in the ratio $1: 2: 3$ ?

A
60 cm and 90 cm
B
90 cm and 100 cm
C
40 cm and 80 cm
D
50 cm and 90 cm
3
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Prong of a vibrating tuning fork is in contact with water surface. It produces concentric circular waves on the surface of water. The distance between five consecutive crests is 0.8 m and the velocity of wave on the water surface is $56 \mathrm{~m} / \mathrm{s}$. The frequency of tuning fork is

A
256 Hz
B
280 Hz
C
341 Hz
D
512 Hz
4
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The end correction for the vibrations of air column in a tube of circular cross-section will be more if the tube is

A
reduced in length.
B
increased in length.
C
made thinner.
D
widened.
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