The number of particles crossing unit area perpendicular to x-axis in unit time is given byn=−D(n2−n1)x2−x1 where n1 and n2 are number of particles per unit volume for the value of x meant to x1 and x2. The dimensions of D are

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M0LT3

M0L2T−4

M0LT−2

M0L2T−1

answer is D.

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Detailed Solution

n = −D(n2−n1)x2−x1 1A.T. = D1VL1L2T = D1L3LD=L2T−1

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