Q24.The fundamental frequency of vibration of a string between two rigid support is 50 Hz. The mass of the string is 18 g and its linear mass density is 20 g m−1 . The speed of the transverse waves so produced in the string is _______ m s–1 .
What This Question Tests
This problem tests the understanding of fundamental frequency of a vibrating string, relating it to wave speed, tension, and linear mass density.
Concepts Tested
Formulas Used
f₁ = v/(2L)
v = √(T/μ)
μ = m/L
📚 NCERT Sections This Tests
10.5 — In Young’S Double-Slit Experiment Using Monochromatic Light Of
Physics Class 12 · Chapter 10
10.5 In Young’s double-slit experiment using monochromatic light of wavelength l, the intensity of light at a point on the screen where path difference is l, is K units. What is the intensity of light at a point where path difference is l/3?
12.5 — A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 · Chapter 12
12.5 A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of photon.
11.8 — Light Of Frequency 7.21 × 1014 Hz Is Incident On A Metal Surface.
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11.8 Light of frequency 7.21 × 1014 Hz is incident on a metal surface. Electrons with a maximum speed of 6.0 × 105 m/s are ejected from the surface. What is the threshold frequency for photoemission of electrons?
📋 Question Details
- Chapter
- Waves & Sound
- Topic
- Transverse waves on a string
- Year
- 2023
- Shift
- 15 Apr Shift 1
- Q Number
- Q24
- Type
- Numerical
- NCERT Ref
- Class 11 Physics Ch 15: Waves
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