Physics Circle home Student Login

Home›Chapters›Wave Motion PYQs›Organ Pipes & Resonance Tube›Question 59

MHT CET 2024 (9 May, Shift 1) · Organ Pipes & Resonance Tube

Organ Pipes & Resonance Tube question from MHT CET 2024 (9 May, Shift 1)

Q59MHT CET 2024 · 9 MAY · SHIFT 1Medium

Organ Pipes & Resonance Tube

A tuning fork of frequency 340 Hz is vibrated just above a tube of 120 cm height. Water is slowly poured in the tube. What is the minimum height of water necessary for resonance?

Show answer and solution

Answer: (a)

  1. Taking v=340v = 340 m/s: λ=340340=1\lambda = \frac{340}{340} = 1 m.
  2. Resonating lengths: 25,75,12525, 75, 125 cm; within 120 cm the longest is 75 cm.
  3. Minimum water height =120−75=45= 120 - 75 = 45 cm
  4. So the answer is (a) 45 cm.
Report a mistake

More questions on Organ Pipes & Resonance Tube