Minimizing the reflection of light
A transparent film of n = 1.6 is deposited on the glass lens of n = 2.8 to form a non-reflective coating. Determine the minimum thickness which would minimize the reflection of light having wavelength 410.0 nm in air (in nm)?
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The light of 650 nm is incident on two slits. A maximum is seen at the angle of 1.13° and a minimum of 1.69°. Determine the order m of the maximum?
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The central bright fringe in a single slit diffraction pattern from the light having wavelength 513 nm is 2.2 cm broad on a screen which is 1.05 m from the slit. (i) Determine how wide is the slit? (In mm)
Suppose the scores on an examination are normally distributed with mean 76 and standard deviation 15. What is the probability that a randomly selected student will get score between 70 to 90?
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