What is wavelength of a T.V. station, which transmits vision on 600 MHz?

What is the wave length of a television station,which transmits vision in 500 MHz? Given c=3 xx 10^8 m s^(-1) .

A hospital uses an ultrasonic scanner to locate tumours in a tissue. What is the wavelength of sound in the tissue in which the speed of sound is 1.7 km s^-1 ? The operating frequency of the scanner is 4.2 MHz.

A bat emits ultrasonic sound of frequency 1000 kHz in air. If the sound meets a water surface, what is the wavelength of the transmitted sound? Speed of sound in air is 340 m s^-1 and in water 1486 m s^-1 .

A T.V. tower has a height of 80 m. What is the maximum distance upto which this T.V. transmission can be received?

What is the range of frequencies used for T.V. transmission?

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

What is the de-Broglie wavelength of an atom of mass m, moving at absolute temperature T K?

A electron is accelerated through a potential difference of 100V. What is de-Broglie wavelength associated with it? To which part of the electromagnetic spectrum does this value of wavelength correspond?