A convex mirror used as rear-view mirror in car has radius of curvature of 3 m.If an approaching bus is located at distance of 5 m from this mirror,how far its image appears in the mirror?
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R=3m f=R/2=3/2
v=-5m
Using mirror formula,
1/f=1/v+1/u
1/3/5=1/-5+1/u
5/3 + 1/5= 1/u
25+3/15=1/u
28/15=1/u
therefore,u=15/28m
v=-5m
Using mirror formula,
1/f=1/v+1/u
1/3/5=1/-5+1/u
5/3 + 1/5= 1/u
25+3/15=1/u
28/15=1/u
therefore,u=15/28m
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