Atoms Test - 46...

In Bohr's model of the hydrogen atom, the ratio between the period of revolution of an electron in the orbit of $$n=1$$ to the period of revolution of the electron in the orbit $$n=2$$ is?

A particle of mass m moves around the origin in a potential $$\displaystyle\dfrac{1}{2}mw^2r^2$$, where r is the distance from the origin. Applying the Bohr model in this case, the radius of the particle in its $$n^{th}$$ orbit in terms of $$a=\sqrt{h/(2\pi m\omega)}$$ is?

The angular momentum of an electron in a hydrogen atom is proportional to(where n is principle quantum number).

An electron with kinetic energy E collides with a hydrogen atom in the ground state. The collision will be elastic.

Energy levels I, II, III of a certain atom correspond to increasing values of energy i.e., $$E_I < E_{II} < E_{III}$$. If $$\lambda_1$$,$$ \lambda_2$$,$$\lambda_3$$ be the wavelengths of radiations corresponding to the transitions III to II, II to I and III to I respectively, which of the following relations is correct ?

In Bohr's model of hydrogen atom, radius of the first orbit of an electron is $$r_0$$. Then, radius of the third orbit is?

If the first line of Lyman series has a wavelength $$1215.4\mathring { A } $$, the first line of Balmer series is approximately

Photons have properties similar to that of.

Number of spectral line in hydrogen atom is

If one takes into account finite mass of the proton, the correction to the binding energy of the hydrogen atom is approximately _____.(mass of proton $$1.60\times 10^{-27}\ kg$$, mass of electron $$=9.10\times 10^{-31}\ kg$$).