1.

The value of universal gravitational constant G = 6.67 xx 10^(-11) N m^(2) kg^(-2). The value of G in units of g^(-1) cm (^(3)s^(-2) is

Answer»

`6.67xx 10^(-8)`
`6.67xx 10^(-7)`
`6.67xx 10^(-9)`
`6.67xx 10^(10)`

Solution :`G= 6.67 xx 10^(-11)Nm^(2)kg^(-2)`
`= 6.67 xx 10^(-11) xx (kgms^(-2)) xx (m^(2)) xx (kg)^(-2)`
`= 6.67 xx 10^(-11) xx[(1000g) xx (100cm) xx s^(-2)] xx(100cm)^(2) xx (1000g)^(-2)`
`= 6.67 xx 10^(-11) xx 10^(5) xx10^(4) xx10^(-6)g^(-1)cm^(3)s^(-2)`
`= 6.67 xx 10^(-8) g^(-1)cm^(3)s^(-2)`


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