- 1(current)
Q. No.Incorrect statement among the following is:
| 1. | The uncertainty principle is\(\Delta x \cdot \Delta p \geq \dfrac{h}{4 \pi} \) |
| 2. | Half-filled and fully filled orbitals have greater stability due to greater exchange energy, greater symmetry, and a more balanced arrangement. |
| 3. | The energy of the 2s orbital is less than the energy of the 2p orbital in the case of hydrogen-like atoms. |
| 4. | De-Broglie's wavelength is given by\(\lambda=\dfrac{h}{m v} \), where m= mass of the particle, v = group velocity of the particle. |
Subtopic: De Broglie Equation |
70%
From NCERT
NEET - 2017
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The mass of a photon with wavelength 3.6 Å is :
| 1. | 5.135 × 10–29 kg | 2. | 61.35 × 10–33 kg |
| 3. | 613.5 × 10–29 kg | 4. | 6.135 × 10–33 kg |
Subtopic: De Broglie Equation |
67%
From NCERT
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If the velocity of an electron in Bohr’s first orbit is 3.19 x 106 ms-1, then the de Broglie wavelength associated with it would be:
1. 314 pm
Subtopic: De Broglie Equation |
75%
From NCERT
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Q. No.
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