Question

An object is located 25 cm in front of a concave mirror. If the mirror has a focal length of 15 cm, where will the image be located? (Use the mirror equation to find the image distance, q)






2. A 10 cm tall object is placed 10 cm away from a concave mirror that has a 4.0 cm focal length a. Where will the image be located? (use the mirror equation to find q) b. Is this a resor virtual image? c Draw a ray diagram below to locate the image ​

Answer 1

1).
1/f=1/u+1/v
-1/15=-1/25+1/v (by applying sign convention)
-1/15+1/25=1/v
-5+3/75=1/v
-2/75=1/v
v=75/-2
=-37.5
Hence, the image will be located at 37.5 cm