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Sahay Sir > Question Answers > N Awasthi Physical Chemistry > Chapter 2 - Atomic Structure (Level 1 and Level 2) > Assume that 2×10^−17 J of light energy is needed by the interior of the human eye to see an object. How many photons of yellow light with λ=595.2nm are needed to generate this generate this minimum energy ?

Assume that 2×10^−17 J of light energy is needed by the interior of the human eye to see an object. How many photons of yellow light with λ=595.2nm are needed to generate this generate this minimum energy ?

What is ratio of time periods (T1 /T 2 ) in second orbit of hydrogen atom to third orbit of He+ ion?