A converging lens of focal length 5cm forms a visual image which is 10cm from the lens, how far from the lens is the object
To find the distance of the object from the lens, we can use the lens formula:
1/f = 1/v - 1/u
Where:
f = focal length (in meters) = 5 cm = 0.05 m
v = distance of the image from the lens (in meters) = 10 cm = 0.1 m
u = distance of the object from the lens (unknown)
Let's substitute these values in the formula:
1/0.05 = 1/0.1 - 1/u
20 = 10 - 1/u
1/u = 10 - 20
1/u = -10
To isolate u, we take the reciprocal of both sides:
u = -1/10
Therefore, the object is located 0.1 m or 10 cm away from the converging lens.