Neon gas is generally used in the sign boards. If it emits strongly at 619nm, calculate
number of quantum present if it produces 2J of energy.

Neon gas is generally used in the sign boards. If it emits strongly at 618nm, calculate energy of quantum and

Neon gas is generally used in the sign boards. If it emits strongly at 616nm, calculate The frequency of emission

Neon gas is generally used in the sign boards. If it emits strongly at 617nm, calculate Distance travelled by his radiation in 30s

Lifetimes of the molecules in the excited states are often measured by using pulsed radiation source of duration nearly in the nano second range. If the radiation source has the duration of 2 ns and the number of photons emitted during the pulse source is 2.5 xx 10^15 , calculate the energy of the source.

In astronomical observations, signals observed from the distant stars are generally weak. If the photons detector receives a total of 3.15 xx 10^-18 J from the radiations of 600 nm, Calculate the number of photons by the detector.

A gas mixture consists of 2.0 moles of oxygen and 4.0 moles of neon at temperature T. Neglecting all vibrational modes, calculate the total internal energy of the system.(Oxygen has two rotational modes.)

The electron in hydrogen atom is given by E_n = (-2.18 xx 10^-18)//n^2 J . Calculate the energy required to remove an electron completely from the n = 2 orbit. What is the longest wavelength of light in cm that can be used to cause this transition?

Using concept of quantum numbers, calculate the maximum numbers of electrons present in the.'M' shell. Give their distribution in shells, subshells and orbitals.