QUESTION 3 An object is 60 centimeters in front of a diverging mirror. The mirror produces...

Question

Question

QUESTION 3 An object is 60 centimeters in front of a diverging mirror. The mirror produces an image of this object that is 20

Answer 1

Answer #1

we know that

focal length is

1/f = 1/u + 1/v

given data

u = -60 cm

v = 20 cm

plugging the values in the formula

1/f= -1/60+1/20 = (-1+3) / 60 = 2/60 =1/30

f = 30 cm

focal length is = 30 cm

ans is option A) 30 cm

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Answer 2

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