1.

E,m,L and G denote energy, mass, angular momentum and gravititional constant respectively, the quantity(E.L)/(m^(5)G^(2)) has the dimensions of :

Answer»

angle
length
mass
time

Solution :Here `X=(EL^(2))/(m^(5)G^(2))` Putting the dimensions
`X=([ML^(2)T^(-2)]xx[ML^(2)T^(-1)]^(2))/(M^(5)xx[M^(-1)L^(3)T^(-2)]^(2))`
`=[M^(0)L^(0)T^(0)]=` dimensionless
`:.(a)`is the correct CHOICE.


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