A concave mirror is found to focus parallel rays at a distanceof 9.0 cm. Where i

Question

A concave mirror is found to focus parallel rays at a distanceof 9.0 cm. Where is the image formed when an object is placed 6.0cm in front of the mirror?

a. 9.2 cm in front of themirror
b. 3.6 cm in front of themirror
c. 18 cm behind the mirror
d. 11 cm in front of themirror
e. 5.6 cm behind the mirror A concave mirror is found to focus parallel rays at a distanceof 9.0 cm. Where is the image formed when an object is placed 6.0cm in front of the mirror? 9.2 cm in front of themirror 3.6 cm in front of themirror 18 cm behind the mirror 11 cm in front of themirror 5.6 cm behind the mirror

Explanation / Answer

mirror formula            1/o + 1/ i = 1 / f o, i are the object and imagedistaces f = beign focallength       given f = -9.0cm              o = 6.0cm pluggin the knon values we cansolve for i.

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