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 type of the image

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

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.