The earth- moon distance is about 60 earth radius. Moon is seen to be of `(1//2)^@` diameter from the earth. 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.

The earth- moon distance is about 60 earth radius. Moon is seen to be of (1//2)^@ diameter from the earth. What must be the relative size compared to the earth?

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?

Kunal is curious to find out the relationship between the diameter o the moon and the earth. From the available data, it is know that the volume of earth is 64 times the volume of the moon. He concluded that the diameter of the moon is 1/4 of the diameter of the earth. Show did he arrive at the conclusions?

If the distance between the sun and the earth is increased by three times then attraction between two will:

How far is the sun from the earth?

If earth revolvesround the sun in one year. If the distance between them become double, the new period of revolution will be

A satellite is orbiting round the earth at a height h above the surface of the earth. If the distance h is increased, the time period of satellite will