PS06-5 LENSES AND OPTICAL INSTRUMENTS

The point where the rays meet is known as....

• Fire
• the focal point
• refraction
• Plane of the lens

This image is.....

• inverted and smaller
• inverted and larger
• not inverted and smaller
• not inverted and larger

This image is...

• Inverted and smaller
• inverted and bigger
• not inverted and smaller
• not inverted and bigger

This image is...

• Inverted and smaller
• Inverted and larger
• not inverted and smaller
• not inverted and larger

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

a real image...

• is produced by virtual rays and can be projected on a screen
• is produced by real rays and cannot be projected on a screen
• is produced by virtual images and cannot be projected on a screen
• is produced by real rays and can be projected on a screen

An object of height 4 cm is placed 10 cm away from a concave lens of focal length 6 cm as shown below.Image is 

• virtual.inverted
• virtual,upright
• real,inverted
• real,upright

Which describes a convex lens?

• triangular in shape
• more transparent in the middle
• thicker on the edges than in the middle
• thicker in the middle than on the edges

A surface that curves outward and causes light to spread out.

• convex mirror
• concave mirror
• plane mirror

an example of a concave lens

• Flashlight
• camera lens
• microscope 
• magnifying glass