Reeflection, Reefraction, Dispersiton And Diffraction

Question 1

Higher/lower frequency and wavelength and how they correspond to index of refraction:

Answer 1

Higher frequency and lower wavelength = higher index of refraction
- Blue/Indigo have higher index of refraction, get more bent then say orange/red which has lower frequency but higher wavelength

Question 2

Higher index of refraction means light travels faster/slower than the medium?

Answer 2

Slower

Question 3

What is the refractive index of water? And what does this mean?

Answer 3

1. 33, and means light travels slower in water than vacuum

- refractive index always greater than one

Question 4

Bending toward or away from normal:

Answer 4

• bend away: high to low refractive index

Question 5

Two properties necessary for total internal reflection:

Answer 5

High n to low n

- relatively high incidence angle

Question 6

Single slit diffraction produces

Answer 6

Single area of maximal peak, followed by surrounding areas of smaller peaks and darker refraction
Maxima: constructive
Mini Mia: destructive

Question 7

Single slit diffraction equation

Answer 7

A sin theta = m(lambda)

M: = mth minima

Question 8

Double slit diffraction produces

Answer 8

• aperture width is neglible compared to distance separating the two = D
• distance between slits in optical screen is > D
• minima and maxima are split more evenly

Question 9

Equation for double slit diffraction

Answer 9

D sin theta = n (lambda)
Nth maxima

Maxima = whole number, minima = 1/2 maxima