Question

The eyes of a certain member of the reptile family pass a single visual single to the brain when the visual receptors are stuck by photons of wavelength 662.6 nm. If a total energy of 3.0 X 10^-14 J is required to trap the signal, what is the minimum number of photons that must strike the receptor?

Answer 1

Answer:

The energy of Photon

=hc/LAMDA==6.62 X 10^-34 X 10^8/ 6.62 X 10^-9

=3 X 10^-9

The number of photons required=10^5