Student Login

Home›Chapters›Wave Motion PYQs›Speed of Waves›Question 23

JEE Main 2021 (25 Feb, Shift 2) · Speed of Waves

Speed of Waves question from JEE Main 2021 (25 Feb, Shift 2)

Q23JEE Main 2021 · 25 FEB · SHIFT 2Easy

Speed of Waves

The percentage increase in the speed of transverse waves produced in a stretched string if the tension is increased by 4%, will be __________%.

Numerical answer type. Work it out, then open the answer.

Show answer and solution

Answer: 2

$v \propto T^{1/2} \Rightarrow \dfrac{\Delta v}{v} = \dfrac{1}{2}\dfrac{\Delta T}{T}$
$\dfrac{\Delta v}{v} = \dfrac{1}{2}\times 4\% = 2\%$
Answer: $2\%$ .

Report a mistake

More questions on Speed of Waves

The wavelength of sound in any gas depends uponMHT CET 2021 (24 Sep, Shift 1)
What is the effect of pressure on the speed of sound in a medium, if pressure is doubled…MHT CET 2021 (23 Sep, Shift 2)
A uniform rope of length 12 m and mass 6 kg hangs vertically from the rigid support. A…MHT CET 2021 (23 Sep, Shift 2)
A uniform metal wire has length L, mass M and density ρ. It is under tension T and v is…MHT CET 2020 (19 Oct, Shift 2)
A transverse wave travels on a taut steel wire with a velocity of v when tension in it is…JEE Main 2020 (8 Jan, Shift 2)
The extension in a wire obeying Hooke's law is x. The speed of sound in the stretched…MHT CET 2020 (16 Oct, Shift 1)
A uniform thin rope of length 12 m and mass 6 kg hangs vertically from a rigid support…JEE Main 2020 (3 Sep, Shift 1)
Speed of a transverse wave on a straight wire (mass 6.0 g, length 60 cm and area of…JEE Main 2020 (7 Jan, Shift 1)