Question

______ is equals to the wave number which
corresponds to electromagnetic radiation of
wavelength 200 nm.
GIVE IT FAST I WILL MARK IT AS BRAINLIEST!!

Answer 1

Answer:

Wave number , ˉ = 1/ λ

So, ˉ = 1/ 200 × 10 ^(-7) cm

ˉ = 0.5 × 10^5 cm

ˉ = 5 × 10^4 cm

5 × 10^4 cm is equals to the wave number which corresponds to electromagnetic radiation of wavelength 200 nm.

Answer 2

Answer:

The value of wavenumber is 500$cm^{-1}$ equivalent to 200nm.

Explanation:

Wavenumber is defined as the number of wavelengths per unit distance.

Wavenumber is generally used in spectroscopy and other science research field. The SI unit of wavenumber is $cm^{-1}$.

Wavenumber is used because the value of wavelength is numerically big it is difficult to repeat that number.

Now,

Wavelength of electromagnetic wave = 200nm = $2\times10^{-3} cm$

As we know that

$\[\begin{gathered} \overline \nu = \frac{1}{\lambda } \hfill \\ \overline \nu = \frac{1}{{2 \times {{10}^{ - 3}}}} \hfill \\ \overline \nu = 0.5 \times {10^3}c{m^{ - 1}} \hfill \\ \overline \nu = 500c{m^{ - 1}} \hfill \\ \end{gathered} \]$

Therefore, 200nm can be represented in wavenumber as 500$cm^{-1}$.