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Select an incorrect alternative:
i. the radius of the nth orbit is proprtional to n2
ii. the total energy of the electron in the nth orbit is inversely proportional to n
iii. the angular momentum of the electron in nth orbit is an integral multiple of h/2π
iv. the magnitude of potential energy of the electron in any orbit is greater than its kinetic energy
i. the radius of the nth orbit is proprtional to n2
ii. the total energy of the electron in the nth orbit is inversely proportional to n
iii. the angular momentum of the electron in nth orbit is an integral multiple of h/2π
iv. the magnitude of potential energy of the electron in any orbit is greater than its kinetic energy
- a)Statement i
- b)Statement iv
- c)Statement ii
- d)Statement iii
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Select an incorrect alternative:i. the radius of the nth orbit is prop...
Statement i. Radius of Bohr's orbit of hydrogen atom is given by
r= n2h2/4π2mKze2
or, r=(0.59A˚)(n2/z)
So, from expression we found r∝n2
Hence the 1st statement is correct.
Statement ii.
We know that
En=-13.6 x z2/n2
So, En ∝1/n2
Hence the 2nd statement is wrong.
Statement iii.Bohr defined these stable orbits in his second postulate. According to this postulate:
r= n2h2/4π2mKze2
or, r=(0.59A˚)(n2/z)
So, from expression we found r∝n2
Hence the 1st statement is correct.
Statement ii.
We know that
En=-13.6 x z2/n2
So, En ∝1/n2
Hence the 2nd statement is wrong.
Statement iii.Bohr defined these stable orbits in his second postulate. According to this postulate:
- An electron revolves around the nucleus in orbits
- The angular momentum of revolution is an integral multiple of h/2π – where Planck’s constant [h = 6.6 x 10-34 J-s].
- Hence, the angular momentum (L) of the orbiting electron is: L = nh/2 π
Hence the 3rd statement is correct.
Statement iv.According to Bohr's theory
Angular momentum of electron in an orbit will be Integral multiple of (h/2π)
Magnitude of potential energy is twice of kinetic energy of electron in an orbit
∣P.E∣=2∣K.E∣
K.E=(13.6ev)( z2/n2)
Hence, The 4th statement is correct.
Statement iv.According to Bohr's theory
Angular momentum of electron in an orbit will be Integral multiple of (h/2π)
Magnitude of potential energy is twice of kinetic energy of electron in an orbit
∣P.E∣=2∣K.E∣
K.E=(13.6ev)( z2/n2)
Hence, The 4th statement is correct.
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Select an incorrect alternative:i. the radius of the nth orbit is prop...
Ii. the total energy of the electron in the nth orbit is inversely proportional to n (This is actually correct as per Bohr's model of the atom)
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Select an incorrect alternative:i. the radius of the nth orbit is proprtional to n2ii. the total energy of the electron in the nth orbit is inversely proportional to niii. the angular momentum of the electron in nth orbit is an integral multiple of h/2πiv. the magnitude of potential energy of the electron in any orbit is greater than its kinetic energya)Statement ib)Statement ivc)Statement iid)Statement iiiCorrect answer is option 'C'. Can you explain this answer? for Class 12 2026 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Select an incorrect alternative:i. the radius of the nth orbit is proprtional to n2ii. the total energy of the electron in the nth orbit is inversely proportional to niii. the angular momentum of the electron in nth orbit is an integral multiple of h/2πiv. the magnitude of potential energy of the electron in any orbit is greater than its kinetic energya)Statement ib)Statement ivc)Statement iid)Statement iiiCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select an incorrect alternative:i. the radius of the nth orbit is proprtional to n2ii. the total energy of the electron in the nth orbit is inversely proportional to niii. the angular momentum of the electron in nth orbit is an integral multiple of h/2πiv. the magnitude of potential energy of the electron in any orbit is greater than its kinetic energya)Statement ib)Statement ivc)Statement iid)Statement iiiCorrect answer is option 'C'. Can you explain this answer?.
Select an incorrect alternative:i. the radius of the nth orbit is proprtional to n2ii. the total energy of the electron in the nth orbit is inversely proportional to niii. the angular momentum of the electron in nth orbit is an integral multiple of h/2πiv. the magnitude of potential energy of the electron in any orbit is greater than its kinetic energya)Statement ib)Statement ivc)Statement iid)Statement iiiCorrect answer is option 'C'. Can you explain this answer? for Class 12 2026 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Select an incorrect alternative:i. the radius of the nth orbit is proprtional to n2ii. the total energy of the electron in the nth orbit is inversely proportional to niii. the angular momentum of the electron in nth orbit is an integral multiple of h/2πiv. the magnitude of potential energy of the electron in any orbit is greater than its kinetic energya)Statement ib)Statement ivc)Statement iid)Statement iiiCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select an incorrect alternative:i. the radius of the nth orbit is proprtional to n2ii. the total energy of the electron in the nth orbit is inversely proportional to niii. the angular momentum of the electron in nth orbit is an integral multiple of h/2πiv. the magnitude of potential energy of the electron in any orbit is greater than its kinetic energya)Statement ib)Statement ivc)Statement iid)Statement iiiCorrect answer is option 'C'. Can you explain this answer?.
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