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28.2k views
in Physics by (77.4k points)

If value of gravitational constant in MKS is 6.67 x 10-11 Nm2/kg2 then value of G in CGS = ......... (dyn-cm2/gm2)

(a) 6.67 x 10-9

(b) 6.67 x 10-7

(c) 6.67 x 10-8

(d) 6.67 x 10-5

1 Answer

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by (87.4k points)
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Best answer

 (c) 6.67 × 10–8 

Explanation:

                    1 N = 105 dyne

                    1 m = 100 cm

                    1 kg = 1000 gm

                    Hence

                         6.67 × 10–11 (Nm2 / kg2

= [{6.67 × 10–11 × 105 × (100)2} / (1000)]2

 = [{6.67 × 10–6 × 104} / 106]

 = [(6.67 × 10–6 × 104) / (106)]

 = 6.67 × 10–8 [(dyn–cm2) / (gm2)]   

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