1
WB JEE 2021
+1
-0.25
A simple pendulum, consisting of a small ball of mass m attached to a massless string hanging vertically from the ceiling is oscillating with an amplitude such that Tmax = 2Tmin, where Tmax and Tmin are the maximum and minimum tension in the string, respectively. The value of maximum tension Tmax in the string is
A
$${{3mg} \over 2}$$
B
mg
C
$${{3mg} \over 4}$$
D
3 mg
2
WB JEE 2020
+1
-0.25
The bob of a swinging second pendulum (one whose time period is 2 s) has a small speed v0 at its lowest point. It height from this lowest point 2.25 s after passing through it, is given by
A
$${{v_0^2} \over {2g}}$$
B
$${{v_0^2} \over {g}}$$
C
$${{v_0^2} \over {4g}}$$
D
$${{9v_0^2} \over {4g}}$$
3
WB JEE 2018
+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
4
WB JEE 2017
+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
$${8 \over {5\pi }}$$
WB JEE Subjects
Physics
Mechanics
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
Coordinate Geometry
Calculus
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