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Dust particles released by comets are co...

Dust particles released by comets are continuously acted upon by sun's radiation pressure in radial outward direction. Assuming a dust particle with `rho =3.5 xx10^3 kg//m^3` and reflection coefficient 0. for what value of radius r does gravitational force on dust.
particle just balance the radiation force on it from sunlight ? (power radiated by sun `=4xx10^(26)`W , mass of sun `=2xx10^(30)kg`)

A

`0.1 mueta`

B

`0.17 mueta`

C

`10 mu eta`

D

`17 mu eta`

Text Solution

Verified by Experts

The correct Answer is:
B
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