For a satellite to orbit around the earth,whi | vedclass

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(D) For any satellite to orbit the Earth,the center of the Earth must lie in the orbital plane of the satellite. Since the equator is a great circle p

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$(A)$ and $(B)$ both

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(D) For any satellite to orbit the Earth,the center of the Earth must lie in the orbital plane of the satellite. Since the equator is a great circle passing through the center of the Earth,the orbital plane of any satellite must intersect the equatorial plane. Therefore,the satellite must pass over the equator at some point in its orbit.The time period $T$ of a satellite is given by $T = 2\pi \sqrt{\frac{r}{g_{eff}}}$,where $r = R + h$ is the orbital radius.Since the minimum height $h$ above the surface is $0$,the minimum orbital radius is $R$. Thus,the time period $T$ must satisfy $T = 2\pi \sqrt{\frac{R+h}{g}} > 2\pi \sqrt{\frac{R}{g}}$.Both statements $(A)$ and $(B)$ are correct.

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

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