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Resolving power of a prism
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 1) What is the use of collimator? It is used for focusing source light Use to get the parallel rays Diverge the source light Converge the source light

 2) Snell's law can be written as: Sin(i)/Sin(r)=n2/n1 Sin(i)/Sin(r)=n1/n2 Sin(r)/Sin(i)=n2/n1 Sin(r)/Sin(i)=1/(n1*n2)

 3) How does the refractive index changes with wave length ? Increase with increase in wave length Decrease with increase in wave length Remains constant Exponential decrease

 4) What is the smallest possible angle between the incident and emerged ray call? Emerged angle Incident angle Angle of deviation Minimum deviation

 5) If the velocity of incident ray is less than the velocity of transmitted ray through a medium. Then angle of refraction is ……? Greater than angle of incidence. Less than angle of incident. Equal to angle of incident. There is no angle of refraction.

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