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Explain the mirage....

Explain the mirage.

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AAKASH SERIES-RAY OPTICS-EXERCISE (SHORT ANSWER QUESTIONS )
  1. State optical path and optical path difference.

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  2. State the laws of refraction of light. State at least three examples o...

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  3. Find the apparent shift due to refraction at a plane surface when the ...

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  4. What is lateral shift and normal shift

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  5. Explain the mirage.

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  6. Explain how a fish deep inside a pond full of water can see everything...

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  7. What is magnification ? Obtain lateral magnification due to refraction...

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  8. The equation of refraction at a spherical surface is ( mu2 )/(v ) ...

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  9. Define first and second principal focus in lens.

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  10. Show that the distance between a real object and its real image formed...

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  11. If the plane surface of a plano-convex lens of radius of curvature R a...

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  12. Consider a ray of light passing through a prism (angle A) in the posit...

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  13. Show that deviation produced by a thin prism of prism angle A and refr...

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  14. Obtain the minimum value of refractive index of a prism of angle A so ...

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  15. The sides of an isosceles right prism are coated with a reflecting coa...

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  16. Find the angle of minimum deviation for an equilateral prism made of a...

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  17. Show that the limiting value of the angle of prism is twice its critic...

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  18. What are pure and impure spectra? State the conditions to produce a pu...

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  19. What are Fraunhoffer lines? Explain their origin.

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  20. State the significance of emission and absorption spectra.

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