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Which one of the following corresponds to a photon of highest energy?

Options

  1. A=300 mm
  2. Bv=3 10⁴ s ⁻¹
  3. Cv =30 cm ⁻¹
  4. D=6.626 10⁻²⁷ J

Correct answer

A. =300 mm

Step-by-step solution

E=h v= h c =h c v ( 1 = v ) where E= energy of photon c= velocity of photon (-light) = wavelength of photon h= plank's constant. For ( a )E=6.63 10⁻³⁴ 3 10⁴ / 300 10⁻⁹E=1.98 10⁻²⁵ J / 300 10⁻⁹ E= 1.98 10⁻² J 300 10⁻⁹ m (a) E=6.6 10⁻¹⁹ J For (b) E=h v=6.63 10⁻³⁴ 3 10⁴(b) E=1.98 10⁻³⁵ J For (c) E=h c v 1 3 E=6.63 10⁻⁴ 3 10^ * 30 10² (c) E=5.96 10^ For (d) d E=6.62 10⁻²⁷ J Hence, highest energy for photon is in (a).

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