A laser used in a dermatological imaging device emits radiation of wavelength 1.50 µm
PHYSICS · Multi-part · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter
Problem
A laser used in a dermatological imaging device emits radiation of wavelength 1.50 µm. Assume values for fundamental physical constants are available on the standard data sheet provided with the exam.
(a) Calculate the energy, in joules, of a single photon emitted by this laser.
(b) Convert the photon energy calculated in part (a) to kilojoules per mole.
(c) Based on the magnitude of the molar energy obtained in part (b), identify whether this radiation most plausibly excites rotational, vibrational, or electronic transitions in typical molecules. Provide one piece of reasoning to support your choice.