Question

if velocity of particle is reduced by 1/3 then it's debroglie wavelength is ?
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Answer 1

Answer:

The velocity of the particle increases by 3 times.

Explanation:

Debroglie wavelength = plank's constant / momentum

Debroglie wavelength = h/(mv)

For constant mass

Wavelength is inversely proportional to velocity.

In case , the velocity is reduced by 1/3 times, then its velocity increases by 3 times.