Question

Select One Option Correct from the following : Two spherical planets P and Q have the same uniform density $\rho$, masses$M_P$ and$M_Q$, and surface areas A and 4A, respectively. A spherical planet R has uniform density $\rho$ and its mass is ([$M_P + M_Q$). The escape velocities from the planets P, Q and R, are $V_P$ , $V_Q$ and$V_R$, respectively. Then,
(A)$V_Q \ \textgreater \ V_R \ \textgreater \ V_P$
(B)$V_R \ \textgreater \ V_Q \ \textgreater \ V_P$
(C)$V_R/V_P = 3$
(D)$V_P /V_Q = 1/2$

Answer 1

d option is correct.
mark brainliest if you like

Answer 2

M_Q[/tex], and surface areas A and 4A, respectively. A spherical planet R has uniform density $\rho$ and its mass is ([$M_P + M_Q$). The escape velocities from the planets P, Q and R, are $V_P$ , $V_Q$ and$V_R$, respectively. Then,

(A)$V_Q \ \textgreater \ V_R \ \textgreater \ V_P$

(B)$V_R \ \textgreater \ V_Q \ \textgreater \ V_P$

(C)$V_R/V_P = 3$

✔️(D)$V_P /V_Q = 1/2$