1
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

When an air column in a pipe open at both ends vibrates such that four antinodes and three nodes are formed, then the corresponding mode of vibration is

A
first overtone
B
second overtone
C
fourth overtone
D
third overtone
2
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The wavelength of sound in any gas depends upon

A
intensity of sound waves only
B
wavelength of sound only
C
density and elasticity of the gas
D
amplitude and frequency of sound
3
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A uniform rope of length $$12 \mathrm{~m}$$ and mass $$6 \mathrm{~kg}$$ hangs vertically from the rigid support. A block of mass $$2 \mathrm{~kg}$$ is attached to the free end of the rope. A transverse pulse of wavelength $$0.06 \mathrm{~m}$$ is produced at the lower end of the rope. The wavelength of the pulse when it reaches the top of the rope is

A
$$0.8 \mathrm{~m}$$
B
$$0.16 \mathrm{~m}$$
C
$$0.12 \mathrm{~m}$$
D
$$0.4 \mathrm{~m}$$
4
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the effect of pressure on the speed of sound in a medium, if pressure is doubled at constant temperature?

A
Remains same
B
Reduced to half
C
Gets doubled
D
Becomes 4 times
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