For a satellite to orbit around the earth, which of the following must be true ? (a) It must be above the equator at some time ( b) It cannot pass over the poles at any time (c) Its height above the surface cannot exceed 36,000 km (d) Its period of rotation must be gt 2pi sqrt(R//g)

For a satellite to orbit around the earth, which of the following must

1.	For a satellite to orbit around the earth, which of the following must be true ? (a) It must be above the equator at some time ( b) It cannot pass over the poles at any time (c) Its height above the surface cannot exceed 36,000 km (d) Its period of rotation must be gt 2pi sqrt(R//g)
Answer» only B & C are true a & d are true a,b, & c are true only b,c & d are true Answer :B