The energy of the photon having frequency 3×1015 Hz would be 
1. 1.988 × 10-18 J
2. 1.588 × 10-18 J
3. 1.288 × 10-18 J
4. 2.988 × 10-18 J

Subtopic:  Electromagnetic Radiation |
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The 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

Subtopic:  Electromagnetic Radiation |
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The neon gas emits radiation of 616 nm. The number of quanta that are present in 2 J of energy is

1. 6.2 × 10-182. 5.6 × 10173. 6.2 × 10184. 32.2 × 10-20

Subtopic:  Planck's Theory | Electromagnetic Radiation |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology