Lifetimes of the molecules in the excited 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 `2.5xx10^(15)`, calculate the energy of the source.

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.

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 is 2.5xx10^(15) , calculate the energy of the source.

Lifetimes of the molecules in the ecited 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 is 2.5xx10^(15) , calculate the energy of the source.

Life 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.

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

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 emitted during the pulse source is 2.5 xx 10^(15) .Calculate the energy of the source .

Nitrogen laser produces a radiation at a wavelength of 337.1nm . If the number of photons emitted is 5.6 xx 10^(24) . Calculate the energy of this laser

The ratio of the power of two sources of light is 2 and the ratio of wavelengths of the emerging monochromatic beam is also 2. What is the ratio of number of photons emitted per second.

A monochromatic source, emitting light of wavelength, 600 nm, has a power output of 66W. Calculate the number of photons emitted by this source is 2 minutes.