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Q. No.Two radiations have wavelengths of 8000 Å and 16000 Å, with corresponding photon energies
E₁ and E₂, respectively. Which of the following correctly represents the relationship between their energies?
1. E₁ = 6E₂
2. E₁ = 2E₂
3. E₁ = 4E₂
4. E₁ = ½E₂
Subtopic: Electromagnetic Radiation |
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A yellow lamp of power 100 W (J s–1) emits radiation of wavelength 560 nm. Calculate the total number of photons emitted by the lamp in 1.0 s:
| 1. | 1.6 × 1018 | 2. | 1.4 × 1018 |
| 3. | 2.8 × 1020 | 4. | 2.1 × 1020 |
Subtopic: Electromagnetic Radiation |
81%
Level 1: 80%+
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Q. No.
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