Question

What is the wavelength of radiation that has a frequency of 7.2×10^11 s−1 ?

Answer 1

Step-by-step explanation:

It is known that relation between wavelength and frequency is as follows.

`\lambda = (c)/(\\u)`

where,
`\lambda` = wavelength

c = speed of light =
`3 * 10^(8) m/s`

[/tex]\\u[/tex] = frequency

It is given that frequency is
`7.2 * 10^(11) s^(-1)`. Hence, putting this value into the above formula and calculate the wavelength as follows.

`\lambda = (c)/(\\u)`

`\lambda = (3 * 10^(8) m/s)/(7.2 * 10^(11) s^(-1))`

=
`0.416 * 10^(-3) m`

or, =
`4.16 * 10^(-4) m`

Thus, we can conclude that wavelength of given radiation is
`4.16 * 10^(-4) m`.