For a planet revolving round the sun, when it is nearest to the sun

A planet is revolving around the sun. its distance from the sun at apogee is r_(A) and that at perigee is r_(p) . The masses of planet and sun are 'm' and M respectively, V_(A) is the velocity of planet at apogee and V_(P) is at perigee respectively and T is the time period of revolution of planet around the sun, then identify the wrong answer.

Name the planet nearest to the sun.

A planet revolves around the sun in elliptical orbit of semimajor axis 2 × 10^(12 ) m. The areal velocity of the planet when it is nearest to the sun is 4.4 × 10^(16) m^(2)/ /s . The least distance between planet and the sun is 1.8 × 10^(12) m. Find the minimum speed of the planet in km/s.

A planet revolves about the sun in an elliptical orbit of semi-major axis 2xx10^(12) m . The areal velocity of the planet when it is nearest to the sun is 4.4xx10^(16) m//s . The least distance between the planet and the sun is 1.8xx10^(12) m//s . The minimum speed of the planet in km//s is 10 K . determine the value of K .

A planet is revolving round the sun in an elliptical orbit. Of the following the property which is a constant during the motion of the planet is :