A binary star system consists of two stars and which have time period and

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A binary star system consists of two stars

A

and

B

which have time period

T_A

and

T_B

, radius

R_A

and

R_B

and mass

M_A

and

M_B

. Then (1) if

T_A > T_B

then

R_A > R_B

(2) if

T_A > T_B

then

M_A > M_B

(3)

\left(\frac{T_A}{T_B}\right)^2 = \left(\frac{R_A}{R_B}\right)^3

(4)

T_A = T_B