Suppose the sun expands so that its radius becomes `100` times its present radius and its surface temperature becomes half of its present value. The total energy emited by it then will increase by a factor of :

Suppose the Sun expands so that its radius becomes 100 times its presents radius and its surface temperature becomes half to its present value. The total energy emitted by it then will increase by a factor of . . . . .. .

Suppose that the sun expands, so that its diameter becomes 10 times its present diameter and its surface temperature becomes half of its present value. Then the total energy emitted by the sun per unit time, will increase by a factor of

If earth radius reduces to half of its present value then the time period of rotation will become:

If earth radius reduces to half of its present value then the time period of rotation will become:

When a wire is stretched and its radius becomes r//2 then its resistance will be

When a wire is stretched and its radius becomes r//2 then its resistance will be

If the radius of earth becomes half of it's present radius how many times decrease in a day.