Question

. A concave mirror of radius 60 cm is placed so that a luminous object is 20 cm in front of the mirror. Where does the image form?

Answer 1

Answer:

radius /2= focal length then focal length for concave mirror is -30cm and object distance is-20cm then we find image distance so using mirror formula 1/f=1/v+1/u ,,,,. -1/30=1/v-1/20 ,,. -1/30+1/20= 1/v ,,, -20+30/600 =1/v ,,,. 1/v= 10/600 means v is +60cm when it's value found positive then this image form behind the mirror erect and virtual image

Answer 2

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