3. Light of wavelength 575 nm falls on a double-slit and the third order bright fringe is seen at an angle of 6.5 degree. What is the separation between the double slits?

Mathematics For Machine Technology
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Chapter11: Addition And Subtraction Of Decimal Fractions
Section: Chapter Questions
Problem 11A
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3. Light of wavelength 575 nm falls on a double-slit and the third order bright fringe is
seen at an angle of 6.5 degree. What is the separation between the double slits?
4. A viewing screen is separated from a double-slit source by 1.3 meter. The distance
between the two slits is 0.020 mm. The second-order bright fringe (m2) is 2.5 cm
from the center line. Determine the wavelength of the light.
Transcribed Image Text:3. Light of wavelength 575 nm falls on a double-slit and the third order bright fringe is seen at an angle of 6.5 degree. What is the separation between the double slits? 4. A viewing screen is separated from a double-slit source by 1.3 meter. The distance between the two slits is 0.020 mm. The second-order bright fringe (m2) is 2.5 cm from the center line. Determine the wavelength of the light.
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