Concepts of Light Quiz

Which of these colors of light has the longest wavelength?

• Blue
• Green
• Red
• Violet

Light travels in a ___________ as long as it is travelling in the same medium. This property of light is called Rectilinear Propagation of light

What is speed of light

• 3.36 X 10 m/sec

What is this?

• Ray of light

• Beam of light

• Divergent beam of light

• Convergent beam of light

Which phenomenon causes the sky to appear blue on a clear day?

• Reflection

• Dispersion

• Scattering

• Refraction

Luminous means

• Objects that are in space

• Objects that give their own light

• Objects that are shiny

• Objects that are very huge

What do we call the bouncing back of light rays from a surface?

• Refraction
• Diffraction
• Absorption
• Reflection

What type of energy does light primarily carry?

• Kinetic Energy
• Potential Energy
• Thermal Energy
• Electromagnetic Energy

The mirror shown in the image curves outward and can produce a smaller image. What is it called?

• Convex mirror

• Concave mirror

• Plane mirror

• 1. Reflecting mirror

What phenomenon occurs when light waves change direction as they pass from one medium to another?

• Reflection
• Refraction
• Diffraction
• Interference