Free neutrons have a decay constant of 1.10 x 10-3s-'. If the de Broglie wavelength of the neutrons in a parallel beam is 1 nm, determine the distance from the source where the beam intensity has dropped to half its starting value.
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![Free neutrons have a decay constant of 1.10 × 10-3 s-'. If the de Broglie
wavelength of the neutrons in a parallel beam is 1 nm, determine the
distance from the source where the beam intensity has dropped to half its
starting value.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F97ede631-4f12-4f3a-a476-5c5115181633%2Fbf5ca3fd-f4c7-4daf-a60f-e8575717500c%2Fzbhf8qu_processed.jpeg&w=3840&q=75)
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