1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

A body is executing SHM. When its displacements from the mean position are $$4 \mathrm{~cm}$$ and $$5 \mathrm{~cm}$$ it has velocity $$10 \mathrm{~cms}^{-1}$$ and $$8 \mathrm{~cms}^{-1}$$ respectively. Its periodic time $$\mathrm{t}$$ is

A
$$\frac{2 \pi}{3} \sec$$
B
2$$\pi$$ sec
C
$$\frac{3 \pi}{2} \mathrm{sec}$$
D
$$\pi$$ sec
2
COMEDK 2024 Morning Shift
MCQ (Single Correct Answer)
+1
-0

A particle executes a simple harmonic motion of amplitude $$\mathrm{A}$$. The distance from the mean position at which its kinetic energy is equal to its potential energy is

A
0.91 A
B
0.71 A
C
0.81 A
D
0.51 A
3
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0

The phase difference between displacement and velocity of a particle in simple harmonic motion is

A
$$\pi \mathrm{~rad}$$
B
$$3 \pi / 2 \mathrm{~rad}$$
C
zero
D
$$\pi / 2 \mathrm{~rad}$$
4
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

A particle is performing simple harmonic motion. Equation of its motion is $$x = 5\sin \left( {4t - {\pi \over 6}} \right),x$$ being the displacement from mean position. Velocity (in ms$$^{-1}$$) of the particle at the instant when its displacement is 3, will be

A
$${{2\pi } \over 3}$$
B
$${{5\pi } \over 6}$$
C
20
D
16
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