spherical mirrors and lens

What is the value of the unknown angle (theta) in the following diagram?

• A. 30 degrees
• B. 45 degrees
• C. 90 degrees
• D. 60 degrees

An image that you can see , but does not really exist is called which of the following?

• Real Image
• Fake Image
• Virtual Image
• Digital Image

What is the position of the image when an object is placed between the centre of curvature and the focus of a concave mirror?

• At the focus
• At the centre of curvature
• Beyond the centre of curvature
• Between the focus and the centre of curvature

A real image having a size of 10 cm is formed by a concave mirror. The size of the object is 5 cm.The magnification of the object is

• -5
• 5
• 2
• -2

What type of image is produced by a flat mirror?

• Real and upright
• Real and inverted
• Virtual and upright
• Virtual and inverted

Tags

NGSS.MS-PS4-2

A dentist uses a small dental mirror to help magnify teeth in your mouth. What type of mirror is this?

• a convex mirror

• a concave mirror

• a convex lens

• a concave lens

Tags

NGSS.MS-PS4-2

The side view mirrors on your car help shrink the image on both sides of the car, allowing you to see a larger field of view. What type of mirror is this?

• a convex mirror

• a concave mirror

• a convex lens

• a concave lens

A student is conducting an experiment with four different types of mirrors. Which mirror in the experiment converges light and UP CLOSE, produces an upright, magnified image of the candles? (hint: no two mirrors are the same)

• mirror 1

• mirror 2

• mirror 3

• mirror 4

Tags

NGSS.MS-PS4-2

An object is placed at a distance of 27.0 cm away from a thin convex lens with a focal length of 9.00 cm.  How far from the lens is the image located and what type of image is formed? 

• 13.5 cm and real
• 3.00 cm and real
• 0.33 cm and virtual
• 0.15 cm and virtual

what is A on the diagram?

• center of curviture

• focal length

• reflected ray

• focal point