1
MHT CET 2024 16th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A string is under tension of 180 N and mass per unit length $2 \times 10^{-3} \mathrm{Kg} / \mathrm{m}$. It produces two consecutive resonant frequencies with a tuning fork, which are 375 Hz and 450 Hz . The mass of the string is

A
1 gram
B
2 gram
C
3 gram
D
4 gram
2
MHT CET 2024 16th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

How many times more intense is a 60 dB sound that a 30 dB sound?

A
2
B
4
C
1000
D
10000
3
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The end correction for the vibrations of air column in a tube of circular cross-section will be more if the tube is

A
reduced in length.
B
increased in length.
C
made thinner.
D
widened.
4
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A wave is given by $Y=3 \sin 2 \pi\left(\frac{t}{0.04}-\frac{x}{0.01}\right)$ where Y is in cm . Frequency of the wave and maximum acceleration will be $\left(\pi^2=10\right)$

A
$100 \mathrm{~Hz}, 4.7 \times 10^4 \mathrm{~cm} / \mathrm{s}^2$
B
$50 \mathrm{~Hz}, 7.5 \times 10^3 \mathrm{~cm} / \mathrm{s}^2$
C
$25 \mathrm{~Hz}, 4.7 \times 10^4 \mathrm{~cm} / \mathrm{s}^2$
D
$25 \mathrm{~Hz}, 7.5 \times 10^4 \mathrm{~cm} / \mathrm{s}^2$
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