Question

Calculate the wavelength of the radiation having the wavelength of 2000 A

Answer 1

Answer:

Answer is 1 for this question

Answer 2

Correct Question:-

Calculate the frequency of the radiation having the wavelength of 2000Å

Answer:-

• Wavelength=$\sf\lambda=2000Å=2000\times 10^{-10}m$
• Frequency=v=?

We know

$\boxed{\sf \lambda=\dfrac{C}{V}}$

$\\ \sf\longmapsto v=\dfrac{C}{\lambda}$

$\\ \sf\longmapsto v=\dfrac{3\times 10^8m/s}{2000\times 10^{-10}m}$

$\\ \sf\longmapsto v=0.0015\times 10^{18}s^{-1}$

$\\ \sf\longmapsto v=1.5\times 10^{15}Hz$