Find the de Broglie wavelength of a ball of mass 0.1 kg moving with a velocity of 10 m s⁻¹.

1. 662.6 × 10–34 m

2. 66.26 × 10–34 m

3. 6.626 × 10–34 m

4. 6.626 × 10–36 m

Subtopic:  De Broglie Equation |
 84%
Level 1: 80%+
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Calculate the de Broglie wavelength of an electron which has a kinetic energy of 3.0 × 10⁻²⁵ J.
1. 886.7 nm
2. 896.7 nm
3. 990.7 nm
4. 880.7 nm
Subtopic:  De Broglie Equation |
 59%
Level 3: 35%-60%
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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 |
 68%
Level 2: 60%+
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