Question

an object is placed at a distance of 60 cm from a concave lens of focal length30cm.find the image image distance and writes the characteristics of the image formed​

Answer 1

Explanation:

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Answer 2

Given that

u= -10 cm

f= 15 cm

We need to find v

We know the formula

1/f = 1/v + 1/u

Therefore, 1/v= 1/f – 1/u

Substituting the known values in the above equation we get,

1/v= 1/15 + 1/10

1/v = (2+3)/30 (lcm)

Hencev=5/30 = 6 cm

v= 6cm

Nature of the image: The image is formed behind the mirror and it is virtual and erect.