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?

2. πr = 2
3. mvr =
4. vr = 2

Subtopic:  Bohr's Theory | De Broglie Equation |
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The largest de Broglie wavelength among the following (all have equal velocity) is

1.  ${\mathrm{CO}}_{2}$ molecule

2.  ${\mathrm{NH}}_{3}$ molecule

3.  Electron

4.  Proton

Subtopic:  De Broglie Equation |
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The wavelength of an electron moving with a velocity of 2.05 × 107 m s-1  would be

2. 3.55 × 10-11 m
3. 2.34 × 1011 m
4. 6.43 × 10-11 m

Subtopic:  De Broglie Equation |
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If the velocity of the electron is 1.6 × 106 ${\mathrm{ms}}^{-1}$. The de Broglie wavelength associated with this electron is

Subtopic:  De Broglie Equation |
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The graphs that represents the variation of momentum of particle with de-Broglie wavelength is

1.

2.

3.

4.

Subtopic:  De Broglie Equation |
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Which of the following statements is wrong?

1. The uncertainty principle is $∆x·∆p\ge \frac{h}{4\mathrm{\pi }}$

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 $\lambda =\frac{h}{mv}$, where m= mass of the particle, v = group velocity of the particle.

Subtopic:  De Broglie Equation |
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The 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

Subtopic:  De Broglie Equation |
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The 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

Subtopic:  De Broglie Equation |
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If 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

Subtopic:  De Broglie Equation |
To view explanation, please take trial in the course below.
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