Light

Question 1

Specular Reflection

Answer 1

Due to reflection on a Smooth Surface, Rays Are Reflected in the Same direction

Question 2

Speed of Light

Answer 2

300 000 000 m/s

Question 3

Red-Shift

Answer 3

Light at Lower Frequencies are Received From Stars Further Away that are Moving Away

Question 4

Electromagnetic Spectrum

Answer 4

Lowest Power From Top:

Radio Waves
Microwaves
Infra-red Light
Visible Light
Ultra-violet Light
X-ray
Gamma Waves

Question 5

Seismic P-waves

Answer 5

Longitudinal and Can Travel Through the Core

Question 6

L.A.S.E.R

Answer 6

Light
Amplification
by
Stimulated
emission
of
Radiation

Question 7

Seismic S-waves

Answer 7

Transverse and Can’t Travel Through the Core

Question 8

Refraction to Normal with Light Through Dense Materials

Answer 8

Light Bends Towards the Normal When Entering a Denser Material (Bends Away When Leaving a Dense Material to Go into a Less Dense One)

Question 9

Convex Lens

Answer 9

Focuses Light onto a Point

Question 10

Diffuse Reflection

Answer 10

Due to Reflection on a Course Surface Rays Are Reflected ‘Everywhere’ But the angle of Incidence Still Equals the Angle of Reflection

Question 11

Concave Lens

Answer 11

Diffuses Light Out

Question 12

Upright (Light)

Answer 12

Direction of the Image is the Same as the Object

Question 13

Inverted (Light)

Answer 13

Direction of the Image is the Reverse of the Object

Question 14

Real (Light)

Answer 14

The Image that You can See Projected Outside of the Lens

Question 15

Virtual (Light)

Answer 15

The Image that You can See Through the Lens

Question 16

Diminished (Light)

Answer 16

The Image Produced is Smaller than the Object

Question 17

Magnified (Light)

Answer 17

The Image Produced is Larger than the Object

Question 18

True Black Body

Answer 18

A Perfect Absorber and Emitter of Thermal Radiation