CHAPTER 7 GEOMETRICAL OPTICS

The distance from center of mirror, C to the pole of mirror is given as

• 2f

• v

• u

• 2R

An image that is formed at the back of the mirror is said to be

• real image

• virtual image

• inverted image

• magnified image

An image is formed upside down in front of mirror and seems bigger by 2 times from the actual size. What might be the type of mirror uses?

• concave mirror

• convex mirror

• plane mirror

• concave lens

Which statement is true about convex mirror?

• image formed is virtual and diminished

• have a positive value of focal length

• image formed is real and diminished

• image formed is real and magnified

Which statement is true about convex mirror?

• image formed is virtual and diminished

• have a positive value of focal length

• image formed is real and diminished

• image formed is real and magnified

What is the formula for magnification?

• -v / u

• -h_i / h_o

• h_i / h_o

• v/u

State the characteristic of image foremd

• real, inverted and diminished

• virtual, upright and diminished

• virtual, upright and magnified

• real, upright and diminished

Convex Mirrors produce...

• only virtual images
• virtual or real images
• only real images
• inverted images

Concave mirrors can create virtual and real images.

• True
• False

The focal length is equal to the:

• radius of curvature
• diameter of curvature
• half radius of curvature
• half diameter of curvature