Question

a certain wave of wavelength is 1.3m has a frequency of 256hertz calculate the speed of sound​

Answer 1

Answer:

$5.1 \times {10}^{ - 3}$

Explanation:

wavelength=1.3m, frequency=256Hz

Speed v=wavelength÷frequency=1.3÷256=0.005078

=

$5.1 \times {10}^{ - 3} \: m \div s$

Answer 2

Explanation:

wave length=1.3(given)

frequency=256HZ(given)

v=distance covered by the wave/time taken

(here wave length and frequency given so)

distance covered by the wave/time period

(time period refers to the time taken by a body to produce a complete wave(which is wave length)

(v=wave length/time period)

If frequency is given then how to find the velocity of a body:

1. frequency:The number of complete waves produced in one second.if for suppose 50 waves passed in one second the time taken by one wave to complete one wave is equal to 1/50 which is timperiod.

so,we can say that 1/frequency=time period.

the relationship between F and t(1/F=t))

(1/F=t) and (1/t=F)

coming to the sum:

v=wave length/time period=wave length×frequency.

v=1.3×256=333.8m/s²