Question

calculate the energy of 100 Photon if the wavelength of light is 2,000 Å

Answer 1

Answer:

The energy of 100 photon is $E=9.94\times 10^{-17}\ J$

Explanation:

Number of photons, n = 100

Wavelength of light, $\lambda=2000\ A=2000\times 10^{-10}\ m$

Energy of the photon is given by :

$E=\dfrac{hc}{\lambda}$

$E=\dfrac{6.63\times 10^{-34}\times 3\times 10^8}{2000\times 10^{-10}}$$E=9.94\times 10^{-19}\ J$

The energy of 100 photon will be, $E=100\times 9.94\times 10^{-18}\ J$

$E=9.94\times 10^{-17}\ J$

Hence, this is the required solution.

Answer 2

Answer:

Explanation:

9.939X 10^-17