Q2.25Multiple choice
- (a)The earth-moon distance is about 60 earth radius. What will be the diameter of the earth (approximately in degrees) as seen from the moon?
- (b)Moon is seen to be of (½)°diameter from the earth. What must be the relative size compared to the earth?
- (c)From parallax measurement, the sun is found to be at a distance of about 400 times the earth-moon distance. Estimate the ratio of sun-earth diameters.