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Photons of wavelength 4000 are used to break molecules. The percentage of energy converted
to the kinetic energy of atoms will be:
[Given: Bond dissociation energy of the molecule is 246.5 kJ/mol]
1. 12%
2. 8%
3. 26%
4. 17%
Subtopic: Photo Electric Effect | De Broglie Equation |
Level 3: 35%-60%
Hints
What is the wavelength of light corresponding to photons with an energy of 1.00 × 103 kJ mol–1?
1. 2.00 × 1031 m
2. 1.20 × 10–7 m
3. 1.20 × 10–4 m
4. 8.36 × 106 m
1. 2.00 × 1031 m
2. 1.20 × 10–7 m
3. 1.20 × 10–4 m
4. 8.36 × 106 m
Subtopic: Photo Electric Effect |
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
Given below are two statements:
| Statement I: | The frequency at which wavelength of 400 nm is 9.50×1014Hz. |
| Statement II: | The frequency at which wavelength of 750 nm is 4.00×1014 Hz. |
| 1. | Statement I is incorrect and Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct and Statement II is incorrect. |
Subtopic: Photo Electric Effect |
53%
Level 3: 35%-60%
Please attempt this question first.
Hints
Please attempt this question first.
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Q. No.
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