The speed of light in air is essentially c. (c = 3.00x108 m/s).

Slides:

Advertisements

Similar presentations

Advertisements

Waves and Energy Transfer Chapter 15 pages

Chapter 4 The Electromagnetic Spectrum Part 1. Demonstration Gas spectral tubes: NeonArgon.

Do Now: Identify the type of wave Click to replay

Wavelength, Frequency, and Energy Practice Problems

1.What is ‘α’ called? 2.What is ‘β’ called? 3.Define the term ‘refraction’ 4.α = 42 o, β = 30 o, v 1 = 7ms -1 and λ 1 = 2m. Using Snell’s law, calculate:

Aim: What happens to the speed of light in different mediums? Do Now: What is the wavelength of yellow light? v = f λ c = f λ 3 x 10 8 m/s = (5.20 x 10.

Electromagnetic Radiation The speed of electromagnetic radiation (speed of light) is constant at x 10 m/s – We’ll express it as 3x10 m/s – The symbol.

How do these work?. How can peacock feathers create bright colors? Why do oil puddles or soap bubbles have colors?

Sound of Music Learning check! #2. 1. What is the approximate value of the refractive index of glass? A. 1.3 B C D. 133.

Understanding the Spectrum, Reflection, & Refraction Ms. Majewski.

Waves – from GCSE What you need to know before you move into AS waves.

ICP 4/4/13 Frequency wavelength examples Bill Nye Waves.

Unit 07 Waves & Wave Properties Sound Waves & Light Waves Problem Solving.

Higher Physics – Unit Refraction of Light.

The incoming wave travels at 5ms -1 and has a wavelength of 4m. The wave changes its speed once it moves onto a shallower region and as the result its.

1. In my classroom, you are 1.45 m from one of the stereo speakers, and 3.21 m from the other. If the wavelength is.391 m, what kind of interference do.

Lesson 29 Wave Characteristics of Light. Wave Function for Light v=λν i.For light v = 3.0x108m/s according to Einstein (maybe false now????)

1. A wave passes every seconds. What is the frequency with which waves pass? (80.0 Hz)

Science w/ Ms. Hendryx 1/17/12. 1.Felectric= 2.PEelectric= 3.C = 4.Power Law: P = 5.Ohm’s Law: V =

Wavelength and Frequency E = h c =  c = speed of light (3 x 10 8 m/s) = frequency (s -1 )  = wavelength (m) E = energy (Joules or J) h  = Planck’s constant.

The Electromagnetic Spectrum Contents: The Spectrum Basic Concepts Whiteboards.

Calculating Wave Speed. Wave Speed v fλ Practice Problem #1 What is the speed of a sound wave that has a wavelength of 2 m and a frequency of Hz?

The faster the end of the rope is ‘waggled’, the shorter the wavelength produced The wave equation.

Refraction Contents: Index of refraction Whiteboard.

When light enters a more dense material, (e.g. perspex), it will slow down…  This is called Refraction. The speed of light in a vacuum is 3x10 8 ms -1.

G6 Thin-film InterferenceG6 Thin-film Interference.

Remember that all types of EM waves move at the speed of light (3.0 x 10 8 m/s).

Wave speed equation v=ƒλ.

Electrons in Atoms Chapter 4.

The Electromagnetic Spectrum Part 1

Speed Formula - Waves.

Electromagnetic Spectrum and EM Waves

Electromagnetic Radiation

Wave Frequency and Speed

25.1 The Electromagnetic Spectrum

25.1 The Electromagnetic Spectrum

Refraction and ….

Characteristics of Waves

Refraction of Sound Waves

The Wave Equation Aim Be able to use the wave equation in calculations.

Calculating Wave Speed

Properties of waves.

What we will do today: Carry out calculations involving the relationship between speed, wavelength and frequency for waves.

Behavior of Light.

Waves and diffraction refraction reflection diffraction questions.

Wave Frequency and Speed

Questions: What is the frequency of a light wave whose wavelength is 700nm (7x10-7 m) At the edge of a pond Daisy counts four waves in 10s. If the distance.

How do these work?.

Index of Refraction and Speed of Light

24.2 Speed of Waves.

Electromagnetic Spectrum

Chapter 14 Refraction.

Electromagnetic Waves

Sample Problem c =    c  =  3.00  108 m/s  = 6.0  /s

Wavelength and Frequency

Other terms related to a periodic wave

Properties of Waves.

Index of Refraction.

Electromagnetic Radiation

Electrons in Atoms C = fl.

Properties of Waves Part 2.

The Electromagnetic Spectrum

REFRACTION OF LIGHT.

Sensible values – waves & quantum – with answers

Presentation transcript:

The speed of light in air is essentially c. (c = 3.00x108 m/s). What is the frequency of a 650. nm light wave in air? (v = f, 650. nm = 650.E-9 m) If the index of refraction of water is 1.33, what is the speed of light in water? (n = c/v) What is the wavelength of the light in water, if it had a wavelength of 650. nm in air? (v = f, use the same frequency) 4.62E14 Hz, 2.26E8 m/s, 4.89E-7 m or 489 nm

The speed of light in air is essentially c. (= 3.00x108 m/s). What is the frequency of a 650. nm light wave in air? (v = f, 650. nm = 650.E-9 m) v = f 3E8 = f(650E-9m) f = 4.61538E14 Hz ≈ 4.62E14 Hz If the index of refraction of water is 1.33, what is the speed of light in water? (n = c/v) n = c/v 1.33 = 3.00E8/v v = 2.2556E8 m/s ≈ 2.26E8 m/s What is the wavelength of the light in water, if it had a wavelength of 650. nm in air? (v = f, use the same frequency) 2.2556E8 m/s = (4.61538E14 Hz)   = 4.887E-7 m ≈ 4.89E-7 m = 489 nm