The dimensional formula of coefficient of viscosity is
[MLT−1]
[ML−1T−1]
[M−1L2T−2]
none
A
[M−1L2T−2]
B
none
C
[MLT−1]
D
[ML−1T−1]
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Solution
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Coefficient of viscosity is given by η=FAdzdv Dimension of force F=[MLT−2] Dimension of Area A=[L2] Dimension of velocity gradient dvdz=[T−1] Thus dimension of coefficient of viscosity η=[MLT−2][L2][T−1]=[ML−1T−1]
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Q1
The dimensional formula for viscosity is [ML−1T−1]. One poise, i.e, C.G.S. unit of viscosity is:
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Q2
The dimension ML−1T−2 can correspond to
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(b) surface tension
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