Number of waves in the third Bohr's orbit of hydrogen will be:
Correct answer: A. 3
- A. 3
- B. 6
- C. 9
- D. 12
Explanation
De Broglie's Hypothesis:De Broglie proposed that electrons have wave-like properties.In Bohr's model, the electron's wave must form a standing wave around the nucleus.For a standing wave to exist, the circumference of the orbit must be an integer multiple of the electron's wavelength.Relationship to Quantum Number:This integer multiple is the principal quantum number (n).Therefore, in the nth Bohr orbit, there are 'n' wavelengths.So, for the third Bohr orbit of hydrogen (n = 3), the number of waves will be 3.
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