Some lasers emit light in pulses that are only 10–12 s in duration. Compared to

Question

Some lasers emit light in pulses that are only 10–12 s in duration. Compared to a laser that emits a steady, continuous beam of light, the Heisenberg uncertainty principle leads us to expect the photons from a pulsed laser to have

Some lasers emit light in pulses that are only 10–12  in duration. Compared to a laser that emits a steady, continuous beam of light, the Heisenberg uncertainty principle leads us to expect the photons from a pulsed laser to have

greater momentum. a narrower range of frequencies. higher energy. a broader range of frequencies. lower energy.

Explanation / Answer

Uncertainty principle states that:
delta x * delta p = h/4*pi
Here we know position accurately, that is delta x is less. So uncertainty in momentum will be large

Answer: greater momentum

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