Mention the method of determining the mass of planets, stars etc.

Write the methods to determine the masses of objects?

The law that helps in determining the masses of the stars present in a double star is _____.

The most suitable method for determination of the molecular mass of polymer is/are

Mention the factors which determine whether a planet would have an atmosphere or not.

By measuring the period of revolution and orbital radius of a satellite around a planet, which of the two can we determine : the mass of the satellite or that of the planet?

Mention a method to measure the temperature of a star.

Explain method for measurement of dimension of a planet or star.

Define molecular mass. Describe three methods for the determination of molecular masses of gases.