Light Flashcards
0
Q
Explain diffraction..
A
The bending of waves around obstacles
1
Q
Reflection is..
A
Angle of incidence is equal to the angle of reflection
2
Q
Which waves diffract more.. And what wave do they belong to?
A
Longer wavelengths diffract more
Radio waves
3
Q
What are the two different lenses?
A
Concave
Convex
4
Q
What lens is used to correct long sighted eyes?
A
Convex
5
Q
What lens is used to correct short sighted eyes?
A
Concave
6
Q
What colour on the spectrum has the highest wavelength and the lowest frequency?
A
Red
7
Q
What colour on the spectrum has the shortest wavelength and the highest frequency?
A
Violet
8
Q
What is total internal reflection in glass?
A
42 degrees
9
Q
Explain total internal reflection
A
Angle of incidence is equal to angle of reflection greater than 42 degrees
