young’s double slit experiment- models light as a wave
TRANSCRIPT
Young’s Double Slit Experiment- models light as a wave.
An electromagnetic wave is a transverse wave.
The speed of light in a vacuum:c = 3.0E8m/s
radio waves
Electromagnetic Spectrum – continuous spectrum of all electromagnetic waves. All EM waves travel
at the speed of light. (c)
c = λf c = λfENERGY
Example: A radio wave has a wavelength of 2.8653m. What is the frequency?In MHz?
The frequency of infrared waves is 3.0E14Hz and the frequency of X-rays is 6.0E17Hz. Calculate the wavelength of both of these types of electromagnetic waves.
How does the energy of X-rays compare to infrared waves?
Complete the following statements:
As the frequency of an EM increases the wavelength _____________
As the frequency of an EM wave increases its energy _____________
As the wavelength of an EM wave increases its energy _____________
As the frequency of an EM wave increases its wavelength ____________ and its speed __________________
color addition
color subtraction
Wave Fronts and Rays
Law of Reflection
Regular and Irregular Reflection
Refraction of Light Demonstration Applet
Refraction
Refraction
Dispersion
Total Internal Reflectionn1>n2
water to air
glass to air
glass to water
өc = critical angle
ө1 < өc Reflection and refraction
ө1 ≥ өc ONLY Reflection
nn
nc
1sin
1
2
