The frequency of the light remains the same but the speed

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Reference no: EM13625558

A certain type of laser emits light that has a frequency of 6.2 × 1014 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 4.6 × 10^-11 s. (a) How many wavelengths are there in one pulse? (b) The light enters a pool of water. The frequency of the light remains the same, but the speed of the light slows down to 2.3 x 10⁸ m/s. How many wavelengths are there now in one pulse?

Reference no: EM13625558

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