answerplease asks:

Please help me to solve this question.....please..?

Q.An incandescent headlight of a vehicle is of spot beam type with a beam angle of 30 . The spherical surface in m2 subtended by the lighted beam at a distance of 5 m from the headlight is
(A) 7.5
(B) 15
(C) 21
(D) 25
In Topics: School and Academics
> 60 days ago



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