. A glass sphere of index 1.5 and radius 40 cm has half its hemispherical surface silvered. The point where a parallel beam of light, coming along a dia


A glass sphere of index 1.5 and radius 40 cm has half its hemispherical surface silvered. The point where a parallel beam of light, coming along a diameter, will focus (or appear to) after coming out of sphere, will be:
                                
 

  • (A):10 cm to the left of centre
  • (B):30 cm to the left of centre
  • (C):50 cm to the left of centre
  • (D):60 cm to the left of centre

Best Answer

Correct Answer:

(D): 60 cm to the left of centre

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