Q3.A
planet moving along an elliptical orbit is closest to the Sun at distance r1
and farthest away at a distance of r2. If v1 and v2
are linear speeds at these points respectively. Then the ratio V1/V2
is
Answer : Option AExplaination / Solution: No Explaination.
Q6.According to Kepler’s second law, the radial vector to a planet from the Sun sweeps out equal areas in equal intervals of time. This law is a consequence of
Answer : Option BExplaination / Solution: No Explaination.
Q8.The
kinetic energies of a planet in an elliptical orbit about the Sun, at positions
A, B and C are KA, KB and KC respectively. AC
is the major axis and SB is perpendicular to AC at the position of the Sun S as
shown in the figure.
Then
Answer : Option AExplaination / Solution: No Explaination.