Physics, asked by Rishi0011, 1 year ago

A source of wave produces 40 crests and 40 troughs in 0.4 s. What is the frequency of the wave

Answers

Answered by hihellow

As time period= 0.4/40
feq=40/0.4=400/4=100Hz

king138: thats wrong

hihellow: explain how???

hihellow: 40 c and 40 T means 40 wavelengths

king138: thats not needed

king138: i have posted a correct ans

king138: its however givn 4 sec

hihellow: nooo 40 crests and 40 troughs makes 40 wavelengths. so time pd is time to travel 1 wavelength so T =0.4/40=0.01s so freq=100hz

king138: ok no fights i accept

Answered by king138

t=1/f

given, t=0.4

f=1/t

=1/0.4
$1 \div 0.4$
$10 \div 4$
= 2.5 hz

Ritik2004: answer is wrong

hihellow: hahahaha 40 wavelengths in 1 time period

king138: whose answer is wrong

king138: check it oit in any book

hihellow: 0.4 is not time pd. so dont use WHAT u used

hihellow: in 0 .4 s wave makes 40 wavelengths not one wavelength so dont take it as time pd

hihellow: pori physics hi ultee kr dee

king138: phir tu use seeda kar

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