1
MHT CET 2023 13th May Evening Shift
+1
-0

When two tuning forks are sounded together, 5 beats per second are heard. One of the forks is in unison with $$0.97 \mathrm{~m}$$ length of sonometer wire and the other is in unison with $$0.96 \mathrm{~m}$$ length of the same wire. The frequencies of the two tuning forks are

A
$$383 \mathrm{~Hz}, 388 \mathrm{~Hz}$$
B
$$475 \mathrm{~Hz}, 480 \mathrm{~Hz}$$
C
$$388 \mathrm{~Hz}, 39 z \mathrm{~Hz}$$
D
$$480 \mathrm{~Hz}, 485 \mathrm{~Hz}$$
2
MHT CET 2023 13th May Evening Shift
+1
-0

The equation of a progressive wave is $$Y=a \sin 2 \pi\left(n t-\frac{x}{5}\right)$$. The ratio of maximum particle velocity to wave velocity is

A
$$\frac{\pi a}{5}$$
B
$$\frac{2 \pi a}{5}$$
C
$$\frac{3 \pi a}{5}$$
D
$$\frac{4 \pi a}{5}$$
3
MHT CET 2023 13th May Evening Shift
+1
-0

A transverse wave strike against a wall,

A
its phase changes by $$180^{\circ}$$ but velocity does not change
B
its phase does not change but velocity changes
C
its velocity changes and phase changes by $$180^{\circ}$$
D
nothing can be predicted about changes in its velocity and phase
4
MHT CET 2023 13th May Evening Shift
+1
-0

A closed pipe and an open pipe have their first overtone equal in frequency. Then, the lengths of these pipe are in the ratio

A
$$1: 2$$
B
$$2: 3$$
C
$$3: 4$$
D
$$4: 5$$
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