A Projector Lens Is Needed to Form an Image on a Screen

question 50

Multiple Choice

A projector lens is needed to form an image on a screen 20 times the size of its corresponding object.The screen is located 8.0 m from the lens.What is the required focal length of the lens?

• A) 0.32 m
• B) 0.38 m
• C) 0.73 m
• D) 1.25 m

---

Definitions:

Anhidrosis

A condition characterized by a reduced ability or inability to sweat, which can affect the body’s ability to cool itself.

Avulsion

The forcible separation or tearing away of a body part or tissue.

Forcibly

Using physical strength, power, or violence to make something happen or to make someone do something.

Tinea

A fungal infection of the skin, also known as ringworm, that can affect various parts of the body and is characterized by ring-shaped, itchy rashes.