an object is placed at 4 cm in front of convex mirror whose focal length is 5 cm and where the image is formed..
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Explanation:
given: object distance= 4 cm
focal length of convex mirror= 5 cm.
we know a formula: 1/f= 1/u+1/v
where, f= focal length, u= object distance, v= image distance
we need to find image distance= v
so, by substituting the values in above formula..
so, 1/5= 1/4+1/v
1/v= 1/5-1/4
1/v= -1/20
v= -20 cm
here, minus(-) symbol indicates negative direction of image
so, image distance= 20 cm
please refer the above attachment for the diagram of answer..
hope it helps you!
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