Test SeriesFree PYQsExamsPricing

NEET 2011 Physics question

PhysicsWavesNEET 2011

Two identical piano wires kept under the same tension have a fundamental frequency of . The fractional increase in the tension of one of the wires which will lead to occurrence of beats/s when both the wires oscillate together would be :

Answer: (1)

Solution

For the fundamental mode of a stretched wire, , with and unchanged for identical wires. Taking logarithms and differentiating, , so $ =

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-090745