The energy of the photon with a frequency of 3 × 1015 Hz is:
1. 1.988 × J
2. 1.588 × J
3. 1.288 × J
4. 2.988 × J
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct arrangement of the following electromagnetic spectrum in the increasing order of frequency is:
1. | Cosmic rays < Amber light < Radiation of FM radio < X-rays < Radiation from microwave ovens |
2. | Radiation from FM radio < Radiation from microwave oven < Amber light < X- rays < Cosmic rays |
3. | Radiation from microwave ovens < Amber light < Radiation of FM radio < X-rays < Cosmic rays |
4. | Cosmic rays < X-rays < Radiation from microwave ovens < Amber light < Radiation of FM radio |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe neon gas emits radiation of 616 nm. The number of quanta that are present in 2 J of energy is:
1. \(6.2 \times 10^{-18} \)
2. \(5.6 \times 10^{17} \)
3. \(6.2 \times 10^{18} \)
4. \(32.2 \times 10^{-20}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology