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# The energy of a photo having a wavelength of 10-10m is(h= 6.63 x 10 -34Js, c =3....

### Question

The energy of a photo having a wavelength of 10-10m is

(h= 6.63 x 10 -34Js, c =3.0 x 10 8ms-1)

A)
2.0 x 10 -15J
B)
1.7 x 10 -13J
C)
2.0 x 10 -12J
D)
1.7 x 10 -12J

### Explanation:

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

E = $$\frac{6.63 \times 10^{-34} \times 3 \times 10^18}{10^{-10}}$$

E = 2 x 10-15J

## Dicussion (1)

• E = $$\frac{hc}{\lambda}$$

E = $$\frac{6.63 \times 10^{-34} \times 3 \times 10^18}{10^{-10}}$$

E = 2 x 10-15J