Sound & Light Flashcards
1
Q
In the EM spectrum, which waves are the smallest?
A
gamma
2
Q
In the EM spectrum, which waves are the largest?
A
radio
3
Q
EM spectrum
A
(largest ) radio microwaves IR ROYGBIV UV x-rays gamma (smallest)
4
Q
Velocity of sound = ?
A
v = √(Κ/ρ)
K = bulk modulus (coefficient of stiffness) ρ = density of medium
5
Q
Velocity of wave = ?
A
v = fλ
6
Q
c = ?
A
Speed of light = 3 x 10^8 m/s
7
Q
Light is ____ when it goes through a prism
A
spread out (NOT interference)
8
Q
Velocity of light through medium = ?
A
v = c/n
c = speed of light n = index of refraction
(n = c/v)
9
Q
If n1 ___ n2 light bends toward the normal
A
10
Q
If n1 < n2, θ1 ___ θ2
A
>
11
Q
If n1 > n2, θ1 ___ θ2
A
12
Q
critical angle (θcrit) is the value of ___ for which θ2 = ___
A
θ1
90 degrees
13
Q
Snell’s law
A
n1sin θ1 =n2sin θ2
14
Q
θcrit = ?
A
θcrit = arcsin(n2/n1)
15
Q
___ frequency
___ wavelength
= more refraction of visible light (_ _ _)
A
high
short
= BIV
