Light, color & Optics

The distance between the focal point and the mirror is

• raduis
• diameter
• focal point
• focal length

According to the Law of reflection, a light ray striking a mirror

• continues moving through the mirror in the same direction
• moves into the mirror at a slightly different angle
• bounces off the mirror toward the direction it came from
• bounces off the mirror at the same angle it hits.

What type of image does this lens form?

• Virtual image
• Real Image
• No Image

Compared to the object in front the lens, its image is.....

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

Concave lenses, like the ones found in the peepholes of a door, always produce images that are .....

• Virtual, upright, smaller
• Real, inverted, larger
• Real, inverted, smaller
• Virtual, upright, larger

Which figure represents the path light takes through a converging lens?

• 
• 
• 
• 

refraction is waves bending because of

• edges of a slit or thin object

• speed of wave changes

• dark matter

• gravity

this is an example of

• refraction

• diffraction

• infraction

• reflection

We shine a laser light from air into a diamond at a 25^o angle. What angle does it make in the diamond? (n₁sinΘ₁=n₂sinΘ₂)

• 0.4132

• 10.057

• .4226

• 17.46

Which electromagnetic waves have the highest frequencies and the shortest wavelengths?

• microwaves
• visible light
• gamma rays