WBJEE: Important Questions and Preparation Tips – Simple Harmonic Motion

Oct 16, 2017 11:26 IST

WBJEE 2018: Simple Harmonic Motion
WBJEE 2018: Simple Harmonic Motion

West Bengal Joint Entrance Examination (WBJEE) is a state level common entrance test organized by West Bengal Joint Entrance Examinations Board for admission to the Undergraduate Level Engineering and Medical Courses through a common entrance test in the State of West Bengal. Students can easily crack WBJEE Examination as the difficulty level of this examination is not too high. We bring to you chapter notes of chapter Simple Harmonic Motion including all important topics like simple harmonic motion, acceleration in simple harmonic motion, velocity in simple harmonic motion, kinetic energy in simple harmonic motion, potential energy in simple harmonic motion etc. These notes will help all WBJEE aspirants to revise all important topics of chapter Simple Harmonic Motion in less time before the examination.

Important Questions and Preparation Tips – Gravitation

Important Concepts:

WBJEE SHM concepts

Important Questions and Preparation Tips – Rotational Motion

Some previous years solved questions are given below:

Question 1:

When a particle executing SHM oscillates with a frequency ν, then the kinetic energy of the particle

(A) changes periodically with a frequency of ν

(B) changes periodically with a frequency of 2ν

(C) changes periodically with a frequency of ν/2

(D) remains constant

Solution 1:

When a particle executing SHM oscillates with a frequency ν, then the kinetic energy of the particle changes periodically with a frequency of 2ν.

Hence, the correct option is (B).

Important Questions and Preparation Tips – Centre of Mass

Question 2:

The displacement of a particle in a periodic motion is given by

WBJEE Question 2

This displacement may be considered as the result of superposition of n independent harmonic oscillations, Here n is

(A) 1

(B) 2

(C) 3

(D) 4

Solution 2:

WBJEE Solution 2

Hence, the correct option is (C).

Important Questions and Preparation Tips – Work, Power and Energy

Question 3:

A particle vibrating simple harmonically has an acceleration of 16 ms-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

Solution 3:

WBJEE SHM Solution 1

Hence, the correct option is (C).

Important Questions and Preparation Tips – Laws of Motion

Question 4:

WBJEE SHM Question 4

Solution 4:

WBJEE SHM Solution 4

Hence, the correct option is (c).

WBJEE 2017 Question Paper

Preparing for Engineering Entrance Examinations 2018: Must read this article

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