Light and Colour

Which of the following electromagnetic waves has the lowest energy

• Gamma Rays

• Ultraviolet

• Visible light

• Infrared Rays

A t-shirt reflecting all light appears _______ to the observer

• Black

• Yellow

• Green

• White

Ms. Shutov has a pair of glow in the dark sneakers. This is an example of ___________.

• Chemiluminescence

• Fluorescence

• Incandescence

• Phosphorescence

Longer wavelengths have __________ frequency than shorter wavelengths.

• higher

• lower

• the same

An object that absorbs blue but reflects green and red will appear

• Green

• Cyan

• Yellow

• Magenta

When all primary colours of light are combined, they form _______ light.

Light that is produced in chemical reactions is the result of (a)  

• chemiluminescence
• phosphorescence
• Incandescence
• Light Emitting Diode (LED)

Objects that produce their own light are ​ (a)  

• Luminous
• Non-luminous
• Illuminated

Which of the following describes light bouncing off an opaque object's surface?

• Aborption

• Reflection

• Transmission

• Refraction

In the retina of the eye, ​​ (a)   are sensitive to changes in light and dark, as well as changes in movement, while ​ (b)   are sensitive to one of three colours; red, blue, and green.

• rods
• cones