Embibe Experts Solutions for Chapter: Sound Waves, Exercise 1: TS EAMCET 2020 (28-Sep Shift-1)

Two waves of sound of wavelength $1.2 \mathrm{m}$ and $1.25 \mathrm{m}$ in a medium produce $90$ beats in $10 \mathrm{s}.$ The speed of sound in the medium is

A standing wave can be produced by combining

A standing wave pattern can be represented by an equation like

A source of sound gives $5$ beats per second when sounded with another source of frequency $100 {\mathrm{s}}^{-1}.$ The second harmonic of the source together with a source of frequency $205 {\mathrm{s}}^{-1}$ gives $5$ beats per second. The frequency of the source is