1
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.25
In case of a simple harmonic motion, if the velocity is plotted along the X-axis and the displacement (from the equilibrium position) is plotted along the Y-axis, the resultant curve happens to be an ellipse with the ratio $${{major\,axis\,(along\,X)} \over {minor\,axis\,(along\,Y)}} = 20\pi $$

What is the frequency of the simple harmonic motion?
A
100 Hz
B
20 Hz
C
10 Hz
D
$${1 \over {10}}$$ Hz
2
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
The velocity of a particle executing a simple harmonic motion is 13 ms$$-$$1, when its distance from the equilibrium position (Q) is 3 m and its velocity is 12 ms$$-$$1, when it is 5 m away from Q. The frequency of the simple harmonic motion is
A
$${{5\pi } \over 8}$$
B
$${5 \over {8\pi }}$$
C
$${{8\pi } \over 5}$$
D
$${8 \over {5\pi }}$$
3
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
A uniform string of length L and mass M is fixed at both ends while it is subject to a tension T. It can vibrate at frequencies (v) given by the formula (where n = 1, 2, 3, ....)
A
$$v = {n \over 2}\sqrt {{T \over {ML}}} $$
B
$$v = {n \over {2L}}\sqrt {{T \over M}} $$
C
$$v = {1 \over {2n}}\sqrt {{T \over {ML}}} $$
D
$$v = {n \over 2}\sqrt {{{TL} \over M}} $$
4
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
A particle vibrating simple harmonically has an acceleration of 16 cms$$-$$2 when it is at a distance of 4 cm from the mean position. Its time period is
A
1 s
B
2.572 s
C
3.142 s
D
6.028 s
WB JEE Subjects