Topic 5 - Light And The Electromagnetic Spectrum - Images

Question 1

What is a real image in physics?

Answer 1

An image produced at the opposite side of the lens to the object

A real image can be projected onto a screen.

Question 2

What type of image is formed by a convex lens?

Answer 2

A real image

The real image formed by a convex lens is inverted.

Question 3

What is a virtual image?

Answer 3

An image that appears to come from the same side of the lens as the object

Virtual images cannot be projected onto a screen.

Question 4

Under what condition does a virtual image occur?

Answer 4

When the object lies closer to the lens than the focal point (F)

This is typical in the case of concave lenses or when using a convex lens with nearby objects.

Question 5

Fill in the blank: A virtual image is formed when the object lies closer to the lens than the _______.

Answer 5

focal point (F)

The focal point is a key concept in lens optics.