Radius Of Orbit

Two satellites A and B are revolving round a planet. Their periods of revolution are 1 hour and 27 hour respectively. The radius of orbit of satellite A is 8 xx 104 km ., find radius of orbit of satellite B.

Radius of first orbit of hydrogen is 0.53 Å . The radius in fourth orbit is:

What is the ratio of radius of K orbit in H atom to the radius of M -orbit of Li^(+2) ?

If r is the radius of first orbit, the radius of nth orbit of the H atom will be:

The ratio of radius of first orbit in hydrogen to the radius of first orbit in deuterium will be :

If r is radius of first orbit , the radius of nth orbit of the H atom will be

If r is the radius of first orbit, the radius of nth orbit of the H atom will be:

If r is radius of first orbit , the radius of nth orbit of the H atom will be