1
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

A stationary wave is represented by $$\mathrm{y}=10 \sin \left(\frac{\pi \mathrm{x}}{4}\right) \cos (20 \pi \mathrm{t})$$ where $$\mathrm{x}$$ and $$\mathrm{y}$$ are in $$\mathrm{cm}$$ and $$\mathrm{t}$$ in second. The distance between two consecutive nodes is

A
1 cm
B
8 cm
C
4 cm
D
2 cm
2
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two waves are superimposed whose ratio of intensities is $$9: 1$$. The ratio of maximum and minimum intensity is

A
$$9: 1$$
B
$$4: 1$$
C
$$3: 1$$
D
$$5: 3$$
3
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Consider the following statements about stationary waves.

A. The distance between two adjacent nodes or antinodes is equal to $$\frac{\lambda}{2}(\lambda=$$ wavelength of the wave)

B. A node is always formed at the open end of the open organ pipe.

Choose the correct option from the following.

A
Both statements A and B are wrong.
B
Only the statement B is true.
C
Only the statement A is true.
D
Both statements A and B are true.
4
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

A hollow pipe of length $$0.8 \mathrm{~m}$$ is closed at one end. At its open end, a $$0.5 \mathrm{~m}$$ long uniform string is vibrating in its second harmonic and it resonates with the fundamental frequency of pipe. If the tension in the string is $$50 \mathrm{~N}$$ and speed of sound in air is $$320 \mathrm{~m} / \mathrm{s}$$, the mass of the string is

A
20 g
B
10 g
C
40 g
D
5 g
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