1
JEE Main 2021 (Online) 25th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The point A moves with a uniform speed along the circumference of a circle of radius 0.36 m and covers 30$$^\circ$$ in 0.1 s. The perpendicular projection 'P' from 'A' on the diameter MN represents the simple harmonic motion of 'P'. The restoration force per unit mass when P touches M will be :

JEE Main 2021 (Online) 25th February Evening Shift Physics - Simple Harmonic Motion Question 81 English
A
9.87 N
B
0.49 N
C
50 N
D
100 N
2
JEE Main 2021 (Online) 25th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
If the time period of a two meter long simple pendulum is 2s, the acceleration due to gravity at the place where pendulum is executing S.H.M. is :
A
16 m/s2
B
2$$\pi$$2 ms$$-$$2
C
$$\pi$$2 ms$$-$$2
D
9.8 ms$$-$$2
3
JEE Main 2021 (Online) 24th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
In the given figure, a body of mass M is held between two massless springs, on a smooth inclined plane. The free ends of the springs are attached to firm supports. If each spring has spring constant k, the frequency of oscillation of given body is :

JEE Main 2021 (Online) 24th February Evening Shift Physics - Simple Harmonic Motion Question 86 English
A
$${1 \over {2\pi }}\sqrt {{{2k} \over {Mg\sin \alpha }}} $$
B
$${1 \over {2\pi }}\sqrt {{k \over {Mg\sin \alpha }}} $$
C
$${1 \over {2\pi }}\sqrt {{{2k} \over M}} $$
D
$${1 \over {2\pi }}\sqrt {{k \over {2M}}} $$
4
JEE Main 2021 (Online) 24th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
When a particle executes SHM, the nature of graphical representation of velocity as a function of displacement is :
A
circular
B
straight line
C
parabolic
D
elliptical
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