Q1PhysicsUnit 10: Oscillations and Waves
f a positively charged pendulum is oscillating in a uniform electric field as shown in Figure. Its
time period of SHM as compared to that when it was uncharged.
Physics · JEE
Simple pendulum: derivation of expression for its time period Revision for JEE
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Revise Simple pendulum: derivation of expression for its time period by covering every subtopic once, drilling formulas, then solving 2+ timed MCQs with full solutions.
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Revision checklist
- 1.Core idea: Simple pendulum: derivation of expression for its time period
- 2.Relates to other subtopics in Oscillations and Waves
- 3.SHM equation, phase, spring and pendulum
- 4.Energy in SHM, resonance
- 5.Master Simple pendulum: derivation of expression for its time period definitions and standard results
- 6.Solve 20 timed MCQs for Simple pendulum: derivation of expression for its time period
Syllabus context
Part of Oscillations and Waves in JEE Main Physics.
- Oscillations and periodic motion: time period, frequency, displacement as a function of time, periodic functions
- Simple harmonic motion (S.H.M.) and its equation, phase
- Oscillations of a spring: restoring force and force constant
- Energy in S.H.M.: kinetic and potential energies
- Simple pendulum: derivation of expression for its time period
- Wave motion, longitudinal and transverse waves, speed of the travelling wave, displacement relation for a progressive wave
- Principle of superposition of waves, reflection of waves, standing waves in strings and organ pipes, fundamental mode and harmonics, beats
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Q2PhysicsUnit 10: Oscillations and Waves
Assertion
The bob of a simple pendulum is a ball full of water. If a fine hole is made in the
bottom of the ball, the time period first increases and then decreases.
Reason
As water flows out of the bob the weight of bob decreases.
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