According to Einstein's theory, light can be assumed to be in the form of a large number of discrete energy packets called photons. In case of light of frequency $$\nu$$, each photon carries energy $$E=h\nu$$. In a certain surgical procedure a surgeon uses LASER beam of wavelength 650 nm in pulses of 30.0 ms duration. The average power of each pulse is 0.6 W. Here h is Planck's constant. Then

A

the frequency of this LASER photon is $$4.6 \times 10^{14}\,\mathrm{Hz}$$

B

the energy in each pulse is $$1.1 \times 10^{17}\,\mathrm{eV}$$

C

energy of one photon is $$3.1 \times 10^{-19}\,\mathrm{J}$$

D

number of photons in each pulse is $$5.9 \times 10^{16}$$