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11th Standard English Medium Physics Subject Oscillations Creative 2 Mark Questions with Solution Part - II

Published on: 24/06/2021

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Std: 11th Standard - Physics

chapter: - Creative Questions

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Questions:

Generic 2

5 x 2 = 10

What is meant by angular oscillation?

What is meant by phase in SHM?

Define acceleration in SHM.

Define velocity in SHM.

What is meant by displacement in SHM?

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Answers Key:

Generic 2

5 x 2 = 10

When a body is allowed to rotate freely about a given axis then the oscillation is known as the angular oscillation.

Phase: The phase of a vibrating particle at any instant completely specifies the state of the particle. It expresses the position and direction of motion of the particle at that instant with respect to its mean position.

Acceleration: The rate of change of velocity is acceleration
\(\alpha =\cfrac { dv }{ dt } =\cfrac { d }{ dt } \left( A\omega cos\omega t \right) \)
\(\alpha =-{ \omega }^{ 2 }Asin\omega t=-{ \omega }^{ 2 }y\)
\(\alpha =\cfrac { { d }^{ 2 }y }{ { dt }^{ 2 } } =-{ \omega }^{ 2 }y\)

Velocity: The rate of change of displacement is velocity.
\(v=\cfrac { dy }{ dt } =\cfrac { d }{ dt } \left( A\ sin\ \omega t \right) \)
\(v=\cfrac { dy }{ dt } =A\omega\ cos\ \omega t\)

The distance travelled by the vibrating particle at any instant of time t from its mean position is known as displacement.
y = A sin \(\omega \)t
The maximum displacement from the mean position is known as amplitude (A) of the vibrating particle.