Question

2. A convex lens forms a real image magnified four times, when the object is placed at a distance of 6 cm from the lens. Calculate the focal length of the lens.
Please explain too how you get the answer and answer should be (f=4.8cm)​

Answer 1

Answer:

the answer is f=4.8cm hope it helps you

Answer 2

answer

m=v/u

Explanation:

here 4=v/-6

v=-24

1/f=1/v-1/u

f=-8