photoeletric effect and waves

How do we experience electromagnetic radiation?

High to low E.

frequency

how many waves past a point of time.

Radio Frequencies

AM: 535 - 1705kHz

FM: 88 - 108 MHz

XM: 2.3 GHz

Electromagnetic waves trend

as it goes up it goes down, and when it is down it goes up

Equation for speed of light

c = 3.0 × 10^8

how to get speed of light relating to wavelength and frequency

c = lambda x v

10 micrometers. x 1m/1,000,00 micrometers = 10^-5

(c = λv)

v - c/λ = 3.00×10^8 m/s/(1×10^-5)

In this scenario, how would you find v?

Ex: a CO2 gas laser produces an intense beam of radiation with a wavelength of 10 micrometers. Calculate the frequency of this radiation.

λ

represents wavelength

v

represents frequency

electromagnetic radiation

electromagnetic radiation is a form of energy that travels through space at the speed of light in the form of waves.

what happens when light is put into a prism

it separates the colors from light according to wavelength.

visible light spectrum of excited sodium atoms

consists of a closely spaced pair of yellow lines.

visible line spectrum of excited hydrogen atoms

consists of four lines, from indigo at 410 nm to red at 656 nm,

what does the Balmer Rydberg Equation calculate?

the wave length of light absorbed or emitted as it transitions between different energy levels in a hydrogen atom.

what should be remebered with the balmer rydberg equation?

hydrogen

the equation is based on calculating light absorbed or emitted between energy levels in hydrogen atom.

balmer rydberg equation visual

the frequency of an atom calculated by balmer rydberg equation

balmer rydbergs constant

what formulas are used with excitation and Emission

what does m and n represent in rydbergs constant?

the principle quantum numbers of the transition

m in rydbergs constant

lower-energy, inner-shell that the transition is to

n in rydbergs constant

higher-energy outer-shell that the transition is from.

what is the appropriate equation when m - 2 and n= 6

the appropriate equation to answer this scenario:

the light blue glow given off by mercury street lamps have λ = 436 nm. What is its frequency?

the correct equation and inputs when m = 3 and n = 5

How is energy related to frequency?

Energy is 6.626 × 10^-34 Jxs (h - planks constant) x v (frequency)

In this scenario, figure out the energy; what is the correct input and equation?

What is the energy of a photon of green light: with a 5^-1 / 1/5 frequency of 5.38 × 10^14

In this scenario, figure out the energy; what is the correct input and equation?

What is the energy of the electromagnetic radiation with a wavelength of 210.0nm?

In this scernario, figure out the energy that responds to kilojoules (kj)/mol the mRI (magnetic resonance imaging) body scanners used in hospitals operate at 400. MHz radiofrequency. How much energy does this correspond to in kJ/mol