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Q. 9. A beam of Parallel rays is incident at an angle of 30° with normal on a plane parallel film of thickness 4.0 x 10-5 cm and u= 1.5. Show that the refracted light whose wavelength is 7.539 x 10-5 cm will be strengthened by reinforcement.

Q. 9. A beam of Parallel rays is incident at an angle of 30° with normal on a plane parallel film of thickness 4.0 x 10-5 cm and u= 1.5. Show that the refracted light whose wavelength is 7.539 x 10-5 cm will be strengthened by reinforcement.

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Q. 9. A beam of Parallel rays is incident at an angle of 30° with normal on a plane parallel film of thickness 4.0 x 10-5 cm and u= 1.5. Show that the refracted light whose wavelength is 7.539 x 10-5 cm will be strengthened by reinforcement.
Transcribed Image Text:Q. 9. A beam of Parallel rays is incident at an angle of 30° with normal on a plane parallel film of thickness 4.0 x 10-5 cm and u= 1.5. Show that the refracted light whose wavelength is 7.539 x 10-5 cm will be strengthened by reinforcement.
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