Question

50. The number of waves in the third orbit of H atom is
(1) 1 (2) 2
(3) 4 (4) 3

Answer 1

Hey Mate,
Number of Waves= n(n-1) /2, where, n = Principal Quantum Number....
So, number of waves in 3rd orbit of H atom is 3 (using the above mentioned formula).....
Hope it helps you....
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Answer 2

Answer: The correct answer is Option 4.

Explanation:

The number of waves is determined by the principle quantum number.

The principle quantum number is represented by the symbol 'n' and it also represents the number of orbits in an atom.

In the given question:

Principle quantum number = 3

Hence, the number of waves in the third orbit of H-atom is 3.

Thus, the correct answer is Option 4.