A spherical black body of radius `r` radiates power `P`, and its rate of cooling is `R`
(i)`P prop r`
(ii)`P prop r^(2)`
(iii)`R prop r^(2)`
(iv)`R prop (1)/(r)`

A spherical black body of radius n radiates power p and its rate of cooling is R. then.

A spherical black body of radius n radiates power p and its rate of cooling is R. then.

A spherical black body is of radius 'r'. Its radiating power is 'P' and its rate of colling is R. Then a) Palphar b) Palphar^(2) c) Ralpha1//r

According to the kinetic theory of gases (i) P prop v_(rms) (ii) v_(rms) prop T (iii) v_(rms) prop T^(1//2) (iv) P prop v_(rms)^(2)

A spherical black body of radius r radiated power P at temperature T when placed in surroundings at temprature T_(0) (lt ltT) If R is the rate of colling .

Let V,T,L,K and r denote the speed, time period, angular momentum, kinetic energy and radius of satellite in circular orbit, then (a) V prop r^(-1) , (b) L prop r^(1//2) , (c) T prop r^(3//2) , (d) K prop r^(-2)