Which of the following sets of electromagnetic waves have higher frequencies than visible light?

Which of the following statements is false?

Which type of electromagnetic radiation travels at the highest speed through a vacuum?

Which of the following is a property of all electromagnetic waves?

A type of electromagnetic wave has wavelengths of the order of 10^–5 m. What type of wave is it?

        Below are three statements about electromagnetic radiation.

·           Microwaves may be used in the sterilisation of medical equipment.

·           Radio waves are use in cancer radiotherapy.

·           Ultraviolet radiation is used in remote controls for television sets.

         How many of the statements is/are correct?

A laser pointer produces red light with a wavelength of 700 nm. What is the frequency of the red light?[Hint: Use speed = frequency x wavelength; Speed is 3 x 10⁸ m/s]