Aconverging lens of focal length 20 cm is used to form a real image 1.0 m away from the lens. how far from the lens is the object?

0.25 m

Explanation:

We can solve the problem by using the lens equation:

where

f is the focal length

p is the distance of the object from the lens

q is the distance of the image from the lens

In this problem, we have

f = +20 cm=+0.20 m (the focal length is positive for a converging lens)

q = +1.0 m (the image distance is positive for a real image)

Solving the equation for p, we find

the answer is definitely c.

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.