The diagram shows the main regions of the electromagnetic spectrum. The numbers show the frequencies of the waves measured in hertz (Hz).

a. Name the regions

i. A

ii. B.

b. i. Write down, in words, the equation connecting wave speed, wavelength, and wave frequency.

ii. Calculate the frequency of the radiation with a wavelength of 0.001 m (10^-3 m), given that all electromagnetic waves travel at a speed of 300,000 000 m/s (3 x 10⁸ m/s) in space.

iii. State to which part of the electromagnetic spectrum the radiation in part ii belongs.

c. Explain how and why microwaves can cause damage to or even kill living cells.

Transcribed Image Text:

10 10 10 104 10 10 10" 1013 10 1014 105 1014 1017 101 10 10 10 ultra- violet radio B A gamma waves rays visible light micro- waves