1:if a parabolic reflector is 20 cm in diameter and 5 cm deep,find the focus? 2:the focus of a parabolic mirror is at distance of 5 cm from the vertex.if the mirror is 45 cm deep find diameter ab

Asked by M P BINU | 3rd Dec, 2012, 09:56: PM

Expert Answer:

1)
 
2)

Answered by  | 4th Dec, 2012, 10:33: AM

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