Two radioactive elements X and Y have half-lives of 100 and 50 years respectively. Samples of X and Y initially contain equal number of atoms. What is the ratio of the number of the remaining atoms of X to that of Y after 200 years?

Similar Questions

The force of attraction between two point masses is 10-4N when the distance between them is 0.18m. I...

Calculate the quantity of heat released when 100g of steam at 100°C condenses to water(Take the spe...

The mass of a nucleus is the ...

Two insulated charged spheres of different sizes and carrying opposite charges are connected togethe...

A body of mass, M, moving with velocity, V, has a wavelength, X, associated with it. This phenomenon...

The heat required to raise a mass of a substance through 1K is known as ...

A boy walks away from a plane mirror at a speed of 3 ms-1 in a direction normal to the surface of th...

The value of T in the figure above is ...

Emission spectra are caused by ...

In a mass spectrometer, an ion of charge, q, and mass, m, moving in a path of radius, r, in a field ...