well i thought u're asking abt the second part cuz this part is easymury456 said:its givn so in the mark scheme ? ?
λ = (330 × 100)/550
λ = 60 cm
cn u explain this ???
thkx
anyways, speed= lambda*frequency
we know the frequency=550 Hz
and the speed is 330ms-1
so we get our lambda as 0.6 m, but in the question they're asking to find that wavelength is 60cm
so u multiply 0.6 by 100 to get 60cm