Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
Concepts Of Physics MCQ Edition [Volume 1]
Exam
Concepts Of Physics MCQ Edition [Volume 1]
Subject
Physics
Chapter
Simple Harmonic Motion

Concepts Of Physics MCQ Edition [Volume 1] · Physics · Simple Harmonic Motion

A seconds pendulum is a pendulum having a time period equal to two...

A seconds pendulum is a pendulum having a time period equal to two seconds. These are the type utilized in pendulum clocks. Calculate the length of a seconds pendulum at a location where g=π2 m/s2g = \pi^2 \text{ m/s}^2.

Options

  1. A1π m\dfrac{1}{\pi} \text{ m}
  2. B1 m1 \text{ m}
  3. C2 m2 \text{ m}
  4. D0.5 m0.5 \text{ m}

Correct answer

B. 1 m1 \text{ m}

Step-by-step solution

The time period of a simple pendulum is given by T=2πLgT = 2\pi \sqrt{\dfrac{L}{g}}.

For a seconds pendulum, the time period is T=2 sT = 2 \text{ s}.

Substituting T=2 sandT = 2 \text{ s} andg = \pi^2 \text{ m/s}^2:<br><br>:<br><br>2 = 2\pi \sqrt{\dfrac{L}{\pi^2}}<br><br><br><br>1 = \pi \left(\dfrac{\sqrt{L}}{\pi}\right)

1=1 =\sqrt{L}

L=1 mL = 1 \text{ m}
Practice Simple Harmonic Motion on Quantrex Academy →

More from Simple Harmonic Motion

At a specific instant, the magnitudes of the position, velocity, and acceleration of a… Concepts Of Physics MCQ Edition [Volume 1]For a particle executing simple harmonic motion, the maximum speed and acceleration are… Concepts Of Physics MCQ Edition [Volume 1]A particle having a mass of 10 g oscillates according to the equation x = (2.0 cm) [(100… Concepts Of Physics MCQ Edition [Volume 1]A particle undergoes simple harmonic motion having an amplitude of 10 cm . At what… Concepts Of Physics MCQ Edition [Volume 1]A particle executes simple harmonic motion with an amplitude of 10 cm and a time period… Concepts Of Physics MCQ Edition [Volume 1]A particle having a mass of 10 g oscillates according to the equation x = (2.0 cm) [(100… Concepts Of Physics MCQ Edition [Volume 1]A particle begins its motion at t = 0 according to the equation x = 5 (20 t + π/3)… Concepts Of Physics MCQ Edition [Volume 1]A particle starts moving at t = 0 with its position given by the equation x = 5 (20 t +… Concepts Of Physics MCQ Edition [Volume 1] Full Simple Harmonic Motion list All Concepts Of Physics MCQ Edition [Volume 1] PYQs