Question

The energy of an electromagnetic radiation is 3×10ergs what is wavelength in nanometer

Answer 1

Answer:

$\displaystyle{\lambda=6.6\times10^{-11} \ nm}$

Explanation:

$\displaystyle{Energy \ is \ 3\times10 \ erg}\\\\\\\displaystyle{We \ have \ energy \ equation}\\\\\\\displaystyle{e=\frac{hc}{\lambda}}\\\\\\\displaystyle{Energy \ in \ joule=3\times10^{-6} \ J}\\\\\\\displaystyle{\lambda=\frac{hc}{e}}\\\\\\\displaystyle{putting \ values}\\\\\\\displaystyle{\lambda=\frac{6.626\times10^{-34}\times3\times10^8}{3\times10^{-6}}}\\\\\\\displaystyle{\lambda=6.626\times10^{-20} \ m}\\\\\\\displaystyle{To \ convert \ it \ into \ nanometer \ dividing \ by \ 10^{-9}}$

$\displaystyle{\lambda=\dfrac{6.6\times10^{-20} }{10^{-9}} \ nm}\\\\\\\displaystyle{\lambda=6.6\times10^{-11} \ nm}$

Thus we get answer .

Answer 2

Answer:

The energy of an Electromagnetic radiation is 3 × 10 ergs .

Formula to find the wavelength in nanometre :

e = nc

¥

= 6.626 × 10^ -34 × 3×10 ^ 8

3 × 10 ^-6

= 6.625 ×™10 ^ -20 metre

= Nanometre dividing by 10 ^ -9

= 6.6 × 10 ^ -20

10 - 9

= 6.6 × 10^ -11 nanometre .

= 6.6 × 10^ - 11 nanometre .