11.A ray of light incident in air for a certain air-glass surface of separation has a polarizing angle of 56°. What will be the angle of refraction in glass ?
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12.The angle of an equilateral glass prism is 59.5°. The angle of minimum deviation is 38.5°. Without using the value of refractive index of the glass, calculate the angle of incidence for a ray of light suffering minimum deviation.
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13.Draw a ray diagram for a convex lens illustrating linear chromatic aberration.
15.Calculate the momentum of a photon of green light of λ = 500 nm in SI unit.
Momentum of photon, p =
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16.Mention any one postulate of Bohr’s theory of hydrogen atom.
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17.Show graphically the variation in the mass of a radioactive substance with time. Mark the values of time on the x-axis in terms of half-life (T, 2T, 3T etc.) and the corresponding values of mass on the y-axis.
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18.Draw a labelled sketch to illustrate pair production.
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19.What is meant by energy gap in solids ?
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20.Draw the circuit diagram of a half-wave rectifier using a p-n junction diode.