- 1(current)
Q. No.The energy of electron in the ground state \((\text{n}=1)\) for \(\text{He}^+\) ion is-\(\text{x}J,\) then that for an electron in \(\text{n}=2\) state for \(\text{Be}^{3+}\) ion in \(\text{J}\) is :
| 1. | \(-\dfrac x9\) | 2. | \(-4x\) |
| 3. | \(-\dfrac 49x\) | 4. | \(-x\) |
Subtopic: Bohr's Theory |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGiven below are two statement:
In the light of the above Statements, choose the correct answer from the options given below:
1. Both Statement I and Statement II are True
2. Both Statement I and Statement II are False
3. Statement I is True but Statement II is False
4. Statement I is False but Statement II is True
| Statement I: | The energy of the \(\mathrm{He}^{+}\) ion in \(n=2\) state is same as the energy of H atom in \(n=1\) state |
| Statement II: | It is possible to determine simultaneously the exact position and exact momentum of an electron in \(\mathrm{H}\) atom. |
In the light of the above Statements, choose the correct answer from the options given below:
1. Both Statement I and Statement II are True
2. Both Statement I and Statement II are False
3. Statement I is True but Statement II is False
4. Statement I is False but Statement II is True
Subtopic: Bohr's Theory | Heisenberg Uncertainty Principle |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGiven below are two statements:
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is True but Statement II is False
2. Statement I is False but Statement II is True
3. Both Statement I and Statement II are True
4. Both Statement I and Statement II are False
| Statement I: | The Balmer spectral line for H atom with lowest energy is located at \(\dfrac 5{36}\mathrm{ R_H~ cm^{-1}}\) (\(\mathrm{R_H}\) = Rydberg constant) |
| Statement II: | When the temperature of blackbody increases, the maxima of the curve (intensity versus wavelength) shifts to shorter wavelength. |
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is True but Statement II is False
2. Statement I is False but Statement II is True
3. Both Statement I and Statement II are True
4. Both Statement I and Statement II are False
Subtopic: Bohr's Theory | Planck's Theory |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn hydrogen atom, what is the de Broglie wavelength of an electron in the second Bohr orbit is: [Given that Bohr radius, ]
1. 211.6 pm
2. 211.6 pm
3. pm
4. 105.8 pm
NEET - 2019
Subtopic: Bohr's Theory |
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NEET 2025 - Target Batch
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
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