Question

A SOUND WAVE HAS A FREQUENCY OF 2KHz AND WAVELENGTH 35 CM WHAT WILL BE THE SPEED OFTHIS SOUND WAVE

Answer 1

Given :

frequency = 2 K Hz

                 = 2,000 Hz

wavelength = 35 cm

                    = 35 / 100 m

                    = 7 / 20 m

Speed of the wave = frequency × wavelength

                                = 2,000 Hz × 7 / 20 m

                                = 200 × 7 / 2 m/s

                                = 100 × 7 m/s

                                = 700 m/s

The speed of the sound wave is 700 m/s

Hope it helps

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