Q14.A guitar string of length 90 cm vibrates with a fundamental frequency of 120 Hz. The length of the string producing a fundamental of 180 Hz will be _____ cm
What This Question Tests
This question tests the inverse relationship between the fundamental frequency of a vibrating string and its length, assuming tension and linear mass density are constant.
Concepts Tested
Formulas Used
f = (1/2L) sqrt(T/μ)
📚 NCERT Sections This Tests
10.5 — In Young’S Double-Slit Experiment Using Monochromatic Light Of
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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?
9.19 — A Screen Is Placed 90Cm From An Object. The Image Of The Object On
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9.19 A screen is placed 90cm from an object. The image of the object on the screen is formed by a convex lens at two different locations separated by 20cm. Determine the focal length of the lens.
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📋 Question Details
- Chapter
- Waves & Sound
- Topic
- Standing Waves in Strings
- Year
- 2023
- Shift
- 08 Apr Shift 2
- Q Number
- Q14
- Type
- Numerical
- NCERT Ref
- Class 11 Physics Ch 15: Waves
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