A radio can tune in to any station in the 7.5 MHz to 12 MHz band. What is the corresponding wavelength band?

The medium wave(MW) band coresponds to wavelength range 200 m to 625 m.If a radio can tune to any station in this and,what is the corresponding frequency band?

A train, standing in a station-yard, blows a whistle of frequency 400 Hz in still air. The wind starts blowing in the direction from the yard to the station with a speed of 10 m s^-1 . What are the frequency, wavelength, and speed of sound for an observer standing on the station’s platform? Is the situation exactly identical to the case when the air is still and the observer runstowards the yard at a speed of 10 m s^-1 ? The speed of sound in still air can be taken as 340 m s ^-1 .

A FM radio station broadcasts at a frequency of 103.1 MHz . What is the wavelength of these radiowaves ?

A certain radio station broadcasts on a frequency of 980 KHz (kilohertz) . What is the wavelength of electromagnetic radiation broadcast by the radio station?

A semiconductor has accpetor level 1.57 eV above the valence band.What is the maximum wavelength of light required to create a hole?Given that 1 eV=1.6 xx 10^(-19)J and h=6.62 xx 10^(-34) Js .