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16 May 2009 18:36:25 IST

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18. The diameters of two planets are in the ratio of 4:1 and their mean densities in the ratio of 1:

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18. The diameters of two planets are in the ratio of 4:1 and their mean densities in the ratio of 1:2.The acceleration due to gravity on the surface of two planets will be in the ratio(a) 4:1(b) 1:8(c) 1:2(d) 2:119.

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Sujit

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16 May 2009 18:38:02 IST

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ans is A

Sujit

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16 May 2009 18:41:44 IST

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ans is 1:2

Sujit

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16 May 2009 18:42:20 IST

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acc. due to gravity=

we find accl is directrly proportional to

hence the ans is 1:2

Ashwin Menon

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16 May 2009 18:45:44 IST

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Thanks =)

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16 May 2009 18:45:59 IST

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YES IT'S( A)

Sujit

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16 May 2009 18:46:51 IST

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welcome :=)

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