A laser used to weld detached retina emits light with a wavelength 652 nm in pulses that are of 20 ms duration. The average power during each pulse is 0.6 W. The energy in each pulse and in a single photon are
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.