SELECT * FROM question_mgmt as q WHERE id=1307 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=2 AND subId=9 AND chapterId=43 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)
Similar to electron diffraction, neutron diffraction microscope is also used for the determination of the structure of molecules. If the wavelength used here is 800 pm, calculate the characteristic velocity associated with the neutron.
Mass of neutron = 1.675 x10-27 kg
We know λ = h/mv
or
v = h/mλ
Substituting the value ,we get
6.626x10-34 / (1.675x10-27)(800x10-12)
= 4.94x104 m/sec
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