please explain the answer Part A An extrasolar planet is made primarily of hydro
ID: 121295 • Letter: P
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please explain the answer
Part A An extrasolar planet is made primarily of hydrogern and helium. It has approximately the same mass Choose the correct explanation, whether the discovery should be considered reasonable or surprising. as Jupiter but is the same size as Neptune. This is reasonable. A Jupiter-mass planet might be smaller if it were hotter, so we know a possible mechanism to make such a massive planet to be Neptune-size This is likely. A Jupiter-mass planet might be larger if it were cooler, and we know some mechanisms that would make such a planet much smaller than Jupiter's size. This is unlikely. A Jupiter-mass planet might be larger if it were hotter, but we know of no mechanism that would make such a planet much smaller than Jupiter's size This is reasonable. A Jupiter-mass planet might be smaller if it were cooler, so we know a possible mechanism to make such a massive planet to be Neptune-size.Explanation / Answer
Answer: This is unlikely. A Jupiter mass planet might be larger if it were hotter, but we know of no mechanism that would make such a planet much smaller than Jupiter's size.
Explanation: Both Jupiter and Neptune are made of gas and both these planets do contain huge amounts of hydrogen and helium. Both Jupiter as well as Neptune are bigger than earth, Jupiter's equator is 143,000 km where as Neptune's is only 49,500 km. Apart from all these Jupiter has the largest apparent disk of any bright object in the sky after sun and moon.
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