Question

Hiii mate...!



A concave mirror forms a image of height 4cm of an object of the height 1 cm placed 20cm away from the mirror. Calculate the image distance of the concave mirror..

Answer 1

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HERE IS YOUR ANSWER..........

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Answer 2

$\huge\bf\red{ANSWER:-}$

Height of image(Hi)= 4cm

Height of the object(h0)= 1cm

u= 20cm

v= ?

By using the formula,

$m = \frac{ - v}{u} = \frac{hi}{ho}$

$= > \frac{ - v}{ - 20} = \frac{ 4}{1}$

$= > - v = 4 \times ( - 20)$

$= > - v =- 80$

$= > v = 80cm$

Therefore,

80cm is the image distance of the concave mirror