1
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two sounding sources send waves at certain temperature in air of wavelength $$50 \mathrm{~cm}$$ and $$50.5 \mathrm{~cm}$$ respectively. The frequency of sources differ by $$6 \mathrm{~Hz}$$. The velocity of sound in air at same temperature is

A
$$300 \mathrm{~m} / \mathrm{s}$$
B
$$303 \mathrm{~m} / \mathrm{s}$$
C
$$313 \mathrm{~m} / \mathrm{s}$$
D
$$330 \mathrm{~m} / \mathrm{s}$$
2
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

41 tuning forks are arranged in increasing order of frequency such that each produces 5 beats/second with next tuning fork. If frequency of last tuning fork is double that of frequency of first fork. Then frequency of first and last fork is

A
$$400,200 \mathrm{~Hz}$$
B
$$200,400 \mathrm{~Hz}$$
C
$$100,200 \mathrm{~Hz}$$
D
$$205,410 \mathrm{~Hz}$$
3
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A transverse wave in a medium is given by $$y=A \sin 2(\omega t-k x)$$. It is found that the magnitude of the maximum velocity of particles in the medium is equal to that of the wave velocity. What is the value of $$A$$ ?

A
$$\frac{2 \lambda}{\pi}$$
B
$$\frac{\lambda}{\pi}$$
C
$$\frac{\lambda}{2 \pi}$$
D
$$\frac{\lambda}{4 \pi}$$
4
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A rectangular block of mass '$$\mathrm{m}$$' and crosssectional area A, floats on a liquid of density '$$\rho$$'. It is given a small vertical displacement from equilibrium, it starts oscillating with frequency '$$n$$' equal to ( $$g=$$ acceleration due to gravity)

A
$$\frac{1}{2 \pi} \sqrt{\frac{\mathrm{Apg}}{\mathrm{m}}}$$
B
$$2 \pi \sqrt{\frac{\mathrm{Apg}}{\mathrm{m}}}$$
C
$$\frac{1}{2 \pi} \sqrt{\frac{\mathrm{m}}{\mathrm{Apg}}}$$
D
$$2 \pi \sqrt{\frac{\mathrm{m}}{\mathrm{Apg}}}$$
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