The circumference of the Bohr orbit for the H atom is related to the de Broglie wavelength associated with the electron revolving around the orbit by which of the following relation?
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe largest de Broglie wavelength among the following (all have equal velocity) is
1. molecule
2. molecule
3. Electron
4. Proton
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe wavelength of an electron moving with a velocity of 2.05 × 107 m s-1 would be
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf the velocity of the electron is 1.6 × 106 . The de Broglie wavelength associated with this electron is
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe graphs that represents the variation of momentum of particle with de-Broglie wavelength is
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements is wrong?
1. The uncertainty principle is
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 , where m= mass of the particle, v = group velocity of the particle.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe velocity associated with a proton moving at a potential difference of 1000 V is 4.37 × 105 ms–1. If the hockey ball of mass 0.1 kg is moving with this velocity, then the wavelength associated with this velocity would be
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe kinetic energy of an electron is 3.0 × 10–25 J. Its wave length would be
1. 8.96 × 10-7 m
2. 4.37 × 10-6 m
3. 1.32 × 10-7 m
4. 2.89 × 10-4 m
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf the wavelength of a neutron is 800 pm, then the characteristic velocity associated with the neutron is
1. 494 m s-1
2. 567 m s-1
3. 494 cm s-1
4. 501 m s-1
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology