Waves + Light Flashcards
(21 cards)
Wave
Travelling disturbance that carries energy from one place to another
Types of 1D Waves
Transverse & Longitude
Wave Front (2D)
Leading edge of trough/crest
Wave Ray (2D)
Direction of wave propagation, which is normal to wave front
1D & 2D Waves
Transmission, Reflection, Interference
2D Waves
Refraction & Diffraction
What angles are equal
Reflection & Incidence
Transmission between Media
Frequency is constant & speed + wavelength changes
Speed & Wavelength
Fast = Wavelength Increases
Slow = Wavelength Decreases
Refraction
Bending of light from change in medium & results angle of incidence
Partial Reflection/Refraction
When wave strikes between two media, some energy is reflection/refracted
Snell’s Law
Analyze degree of refraction
Diffraction
Spreading out waves as they go through small opening/sharp barrier
Interference
Circular waves interfere in 2D, and shown by stationary NODAL lines
Destructive Interference
Happens when solid lines and dotted lines intersect
Constructive Interference
Happens when same lines intersect
Nodal Lines General Pattern
Appear straight at a distance & depend on wavelength & source
Double Slit Experiment
Evidence for wave model of light
Light interference
Perpendicular distance from double slit plate to screen
ROY
Low frequency & long wavelength
GBV
High frequency & short wavelength
