1
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A glass tube of $$1 \mathrm{~m}$$ length is filled with water. The water can be drained out slowly from the bottom of the tube. If vibrating tuning fork of frequency $$500 \mathrm{~Hz}$$ is brought at the upper end of the tube then total number of resonances obtained are [Velocity of sound in air is $$320 \mathrm{~ms}^{-1}$$]

A
3
B
4
C
1
D
2
2
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A sound wave is travelling with a frequency of $$50 \mathrm{~Hz}$$. The phase difference between the two points in the path of a wave is $$\frac{\pi}{3}$$. The distance between those two points is (Velocity of sound in air $$=330 \mathrm{~m} / \mathrm{s}$$ )

A
1.1 m
B
0.6 m
C
2.2 m
D
1.7 m
3
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A transverse wave given by $$y=2 \sin (0.01 x+30 t)$$ moves on a stretched string from one end to another end in 0.5 second. If '$$x$$' and '$$y$$' are in $$\mathrm{cm}$$ and '$$\mathrm{t}$$' is in second, then the length of the string is

A
6 m
B
9 m
C
12 m
D
15 m
4
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A pipe open at both ends of length 1.5 m is dipped in water such that the second overtone of vibrating air column is resonating with a tuning fork of frequency 330 Hz. If speed of sound in air is 330 m/s then the length of the pipe immersed in water is (Neglect and correction)

A
0.35 m
B
0.25 m
C
0.55 m
D
0.45 m
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