Q1. Define electromagnetic radiation in terms of the wave mechanical model. Compute the energy of a photon corresponding to 102.6 MHz frequency. The transmittance of a solution, containing 7.3 mg of an potassium dichromate per 100 cm³, taken in a cuvette of path length of 1 cm is measured at 455 nm. If the percentage transmittance found to be 6, calculate the molar absorptivity of the oxidizing agent.
- (a)) Define electromagnetic radiation in terms of the wave mechanical model. Compute the energy of a photon corresponding to 102.6 MHz frequency. (200 words)
- (b)) The transmittance of a solution, containing 7.3 mg of an potassium dichromate per 100 cm³, taken in a cuvette of path length of 1 cm is measured at 455 nm. If the percentage transmittance found to be 6, calculate the molar absorptivity of the oxidizing agent. (200 words)
- EMR is energy propagating as oscillating perpendicular electric and magnetic fields.
- Wave mechanical model describes EMR by wavelength, frequency, and speed.
- Photon energy (E) is quantized, proportional to frequency (ν): E = hν.
- Planck's constant (h) is 6.626 × 10⁻³⁴ J·s, used for photon energy calculations.
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