Atoms Test - 45...

With increasing quantum number, energy difference between adjacent levels in atoms :

 Ratio of minimum to maximum wavelength in Ballmer series is :

Velocity of electron in second Bohr's orbit as compared to velocity in first orbit is :

A radio transmitter operates at a frequency of 1000 kHz and a power of 66 kW. Then, the number of photons emitted per second is

Energy of each orbit is

According to the Bohr's atomic model, the relation between principal quantum number (n) and radius of orbit(r) is?

Which of the following expressions has the correct units to represent the radius of a hydrogen atom in its ground state?

Bohr's atomic model is based upon :

According to Bohr's atomic model, angular momentum of electron in nth orbit is equal to an integral multiple of

When a hydrogen atom is raised from the ground state to an excited state.