1
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Stationary waves can be produced in

A
only solid and gaseous media
B
only liquid and gaseous media
C
only solid and liquid media
D
solid, liquid and gaseous media
2
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If the length of an open organ pipe is $$33.3 \mathrm{~cm}$$, then the frequency of fifth overtone is [Neglect end correction, velocity of sound $$=333 \mathrm{~m} / \mathrm{s}$$ ]

A
$$3500 \mathrm{~Hz}$$
B
$$3000 \mathrm{~Hz}$$
C
$$2500 \mathrm{~Hz}$$
D
$$2000 \mathrm{~Hz}$$
3
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If the end correction of an open pipe is $$0.8 \mathrm{~cm}$$, then the inner radius of that pipe is

A
$$\frac{1}{3} \mathrm{~cm}$$
B
$$\frac{2}{3} \mathrm{~cm}$$
C
$$\frac{3}{2} \mathrm{~cm}$$
D
$$0.2 \mathrm{~cm}$$
4
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

When both source and listener are approaching each other the observed frequency of sound is given by $$\left(V_L\right.$$ and $$V_S$$ is the velocity of listener and source respectively, $$\mathrm{n}_0=$$ radiated frequency)

A
$$\mathrm{n}=\mathrm{n}_0\left[\frac{\mathrm{V}+\mathrm{V}_{\mathrm{L}}}{\mathrm{V}-\mathrm{V}_{\mathrm{s}}}\right]$$
B
$$\mathrm{n}=\mathrm{n}_0\left[\frac{\mathrm{V}-\mathrm{V}_{\mathrm{L}}}{\mathrm{V}+\mathrm{V}_{\mathrm{s}}}\right]$$
C
$$\mathrm{n}=\mathrm{n}_0\left[\frac{\mathrm{V}-\mathrm{V}_{\mathrm{L}}}{\mathrm{V}-\mathrm{V}_{\mathrm{s}}}\right]$$
D
$$\mathrm{n}=\mathrm{n}_0\left[\frac{\mathrm{V}+\mathrm{V}_{\mathrm{L}}}{\mathrm{V}+\mathrm{V}_{\mathrm{s}}}\right]$$
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