Neon gas is generally used in the sign boards
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Neon gas is generally used in the sign boards. If it emits strongly at 616 nm, calculate (a) the frequency of emission, (b) distance traveled by this radiation in 30 s (c) energy of quantum and (d) number of quanta present if it produces 2 J of energy.
NCERT Class XII
Chemistry - Main Course Book I
Chapter 2. Structure of Atom