The wavelength of light emitted from second orbit to first orbits in a hydrogen atom is

Wavelength of a light emitted from second orbit to first orbit in a hydrogen atom is

What is the energy emitted when an electron jumps froms second orbit to first orbit in a hydrogen atom ?

What is the energy emitted when an electron jumps froms second orbit to first orbit in a hydrogen atom ?

What is the energy emitted when an electron jumps froms second orbit to first orbit in a hydrogen atom ?

The ratio of area covered by second orbit to the first orbit in hydrogen atom is :-

If the wavelength of photon emitted due to transition of electron from third orbit to first orbit in a hydrogen atom is lambda then the wavelength of photon emitted due to transition of electron from fourth orbit to second orbit will be

If the wavelength of photon emitted due to transition of electron from third orbit to first orbit in a hydrogen atom is lambda then the wavelength of photon emitted due to transition of electron from fourth orbit to second orbit will be