Light And Optics Flashcards
1
Q
Electromagnetic Spectrum
A
Low->High energy & frequency High wavelength -> low wavelength Radio Microwave Infrared Visible Ultraviolet X-ray Gamma
2
Q
Speed of light
A
3x 10^8 m/s
3
Q
Speed of light equation
A
C=f λ
4
Q
Visible Spectrum
A
400-700 nm
5
Q
Electromagnetic Pneumonic
A
GXU VIMR
6
Q
Law of Reflection
A
θ1= θ2
7
Q
Focal length eq
A
f=r/2
8
Q
Focal length, object, radius, image distance
A
1/f=1/o=1/i=2/r
9
Q
Virtual vs real image
A
i<0 , i>0
10
Q
Magnification
A
-i/o
11
Q
What happens when an object is in front of the focal point ?
A
The image is produced behind the mirror, and it is virtual
12
Q
What happens when the object is behind the focal point ?
A
The image is produced in front of the mirror, real image
13
Q
What happens when the object is at the focal point
A
No image
14
Q
Snells law
A
N=c/v
V- speed of light in medium
N-index of refraction
15
Q
Snell
A
n1sin θ1=n2sin θ2
n1 medium from which light comes
n2 medium through which it is going
