Share
A lens has a focal length of 0.1 m .Find the image distance when the object distance is •A) 0.5 m •B) 0.08 m And write the
Question
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Answers ( )
Answer:
A) 0.125 m (the image is real)
B) -0.4 m (the image is virtual)
Explanation:
For both situations we will use the Lens Equation:
(1)
Where:
is the focal length
is the distance between the object and the lens
is the distance between the image and the lens
Isolating :
(2)
Knowing this, let’s begin with the answers:
A) When
The image is real
B) When
The negative sign indicates the image is virtual