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Q.

Match column I with column II

 Column-I Column-II
P)Decreasing order of massesIe>p>n
Q)Decreasing order of e/m valuesIIp>e>n
R)Decreasing order of de-Broglie’s wavelength with same velocitiesIIIn>p>e
S)Decreasing order of uncertainty in velocity when ΔX is the sameIVn>e>p
  Ve->n >P

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a

PQRS
IIIIII

b

PQRS
IIIIIIIV

c

PQRS
IVIIIVI

d

PQRS
VIIIIIV

answer is A.

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Detailed Solution

me=9.1×1031kg;mp=1.672×1027kg
mn=1.675×1027kg
charge of e=1.6×1019C
charge of p =+1.6×1019C
charge of n = 0

De-Broglie’s wavelength, λ1m

According to heisenberg uncertainty principle, x1m, when v is constant.

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