Planet nearest to sun is

A planet is revolving about sun in an elliptical orbit. Choose the correct option based on the statements given below, (i) Areal velocity is constant. (ii) Arval velocity is proportional to velocity (iii) When planet is nearest to sun it's speed is maximum, (iv) Planet will move with constant speed. (v) Areal velocity is inversely proportional to velocity.

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 .

The period of revolution of a planet around the sun is 8 times that of the earth. If the mean distance of that planet from the sun is r, then mean distance of earth from the sun is