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Concepts of Light Quiz

Total questions: 10

Worksheet time: 4mins

Name
Class
Date
1.

Which of these colors of light has the longest wavelength?

a)
Blue
b)
Green
c)
Red
d)
Violet
2.

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

3.

What is speed of light

a)

2 X 1082\ X\ 10^8  m/sec

b)

3 X 108 3\ X\ 10^{8\ ^{ }}  m/sec

c)

2.25 X 108       2.25\ X\ 10^{8\ \ \ \ \ \ \ }  m/sec

d)

3.36 X 10 m/sec

4.

What is this?

a)

Ray of light

b)

Beam of light

c)

Divergent beam of light

d)

Convergent beam of light

5.

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

a)

Reflection

b)

Dispersion

c)

Scattering

d)

Refraction

6.

Luminous means

a)

Objects that are in space

b)

Objects that give their own light

c)

Objects that are shiny

d)

Objects that are very huge

7.

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

a)
Refraction
b)
Diffraction
c)
Absorption
d)
Reflection
8.

What type of energy does light primarily carry?

a)
Kinetic Energy
b)
Potential Energy
c)
Thermal Energy
d)
Electromagnetic Energy
9.

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

a)

Convex mirror

b)

Concave mirror

c)

Plane mirror

d)
  1. Reflecting mirror

10.

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

a)
Reflection
b)
Refraction
c)
Diffraction
d)
Interference