3. An object of size 7.0 cm in placed at 27 cm in front of a concave mirror of focal
length 15 cm. Find the position and nature of image.
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3. An object of size 7.0 cm in placed at 27 cm in front of a concave mirror of focal
length 15 cm. Find the position and nature of image.
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Answer:
HEY MATE HERE IS UR ANSWER:-
Object height (h) =7cm
Object distance (u) =-27cm
Focal lenght of the concave mirror (f) =-18cm
Using mirror Formula, 1/f=1/v+1/u
we get, 1/v=1/f-1/u
1/v=(1/-18)-(1/-27)
=-1/18+1/27
= -3+2/54
1/v =-1/54
v=-54cm
by using m= h/h'= -v/u
7/h'=-(-54)/(-27)
h'=-7x(-54)/(-27)
h' =-14cm
Since h>h' the image is enlarged. As the value of h is negative, the image is inverter.
Since v is negative, the image formed is real.
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