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Pressure is defined as :...

Pressure is defined as :

A

momentum per unit area

B

momentum per unit area per unit time

C

momentum per unit volume

D

energy per unit volume

Text Solution

Verified by Experts

The correct Answer is:
b, d
Reynold number `=(rho vD)/eta=([ML^(-3)][LT^(-1)][L])/([ML^(-1)T^(-1)])`
`=[M^(0)L^(0)T^(0)]`
Coefficient of friction `=f/R=([ML^(2)T^(-2)])/([ML^(2)T^(-2)])=[M^(0)L^(0)T^(0)]`
(b) Latent heat, `L=Q/m=([ML^(2)T^(-2)])/([M])=[L^(2)T^(-2)]`
Gravitational potential `=U/m=([ML^(2)T^(-2)])/([M])=[L^(2)T^(-2)]`
(c) Curie `=3.7xx10^(7)` disintegration/sec `=[T^(-1)]`
Frequency `=(1)/("Time period")=[T^(-1)]`
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