Lightings Quiz

What are the two main types of light sources?

• LED and fluorescent

• Natural light sources and artificial light sources

• Candlelight and bonfire

• Sunlight and moonlight

Name two examples of natural light sources.

• Sun and fire

• Moon and light bulb

• Candle and lightning

• Lamp and flashlight

What are the properties of light?

• Absorption, diffraction, transmission

• Diffraction, transmission, scattering

• Reflection, refraction, dispersion, polarization, and interference

• Scattering, absorption, emission

Explain the concept of light polarization.

• Light polarization refers to the color of light emitted by a source.

• Light polarization is the orientation of the oscillations of light waves in a particular direction.

• Light polarization is the phenomenon of light bending around corners.

• Light polarization is the process of converting light into polarized sunglasses.

What is the difference between reflection and refraction of light?

• Reflection and refraction both refer to the absorption of light by a surface.

• Reflection is the bouncing back of light when it hits a surface, while refraction is the bending of light as it passes from one medium to another.

• Reflection is the bending of light as it passes from one medium to another, while refraction is the bouncing back of light when it hits a surface.

• Reflection and refraction are the same thing and can be used interchangeably.

How does a prism demonstrate the phenomenon of light refraction?

• The prism reflects the light instead of refracting it

• The prism absorbs the light and creates a new source of light

• The prism has no effect on the light passing through

• The prism causes the light to bend or refract as it passes through.

What are the key principles of lighting design?

• Brightness, saturation, hue, temperature

• Reflection, refraction, dispersion, diffraction

• Balance, contrast, harmony, rhythm, and emphasis

• Size, shape, texture, pattern

Explain the concept of task lighting and its importance in lighting design.

• Task lighting is a focused light source that illuminates a specific area where a particular task is performed. It is important in lighting design as it helps to improve visibility and reduce eye strain while performing tasks such as reading, cooking, or working on a computer.

• Task lighting is only important for outdoor lighting design

• Task lighting is a type of decorative lighting used for special occasions

• Task lighting is a type of ambient lighting used for creating a cozy atmosphere

How does lighting affect human circadian rhythms?

• It causes an increase in adrenaline production

• It has no effect on circadian rhythms

• It influences the production of hormones like melatonin, which regulates sleep-wake cycles.

• It leads to a decrease in cortisol levels

What are the potential health effects of exposure to blue light from electronic devices?

• Decreased risk of macular degeneration

• Digital eye strain, disrupted sleep patterns, and increased risk of macular degeneration

• Improved sleep patterns

• Reduced eye strain