An object , which has a height of 27.0 cm , is placed 18.0 cmfrom a concave mirr

Question

An object , which has a height of 27.0 cm , is placed 18.0 cmfrom a concave mirror, which has a radius
of curvature of 22.0 cm and a diameter of 3.70 cm :
a) What is the focal length of this mirror?
b) What will be the position of the, resulting image?
c) What will be the height of the resulting image?
An object , which has a height of 27.0 cm , is placed 18.0 cmfrom a concave mirror, which has a radius of curvature of 22.0 cm and a diameter of 3.70 cm : a) What is the focal length of this mirror? b) What will be the position of the, resulting image? c) What will be the height of the resulting image?

Explanation / Answer

(a)  the focal length of this mirror f=22/2=11cm (b) the position of the, resulting image 1/d+1/d'=1/f d=18 cm =>d'=28.3 cm>0=> real image (c)the height of the resulting image h'=27*|-d'/d|=42.4cm

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