Question

what is critical wavelength? explain in simple words.

Answer 1

Answer:

critical wavelength: The free-space wavelength that corresponds to the critical frequency. Note: The critical wavelength is equal, in meters, to the speed of light (3 × 108 m/s) divided by the critical frequency in hertz.

Answer 2

Answer:

critical wavelength is the wavelength below which 90 per cent of the area under the absornance curve resides.