Download presentation

Published byDominic Porter Modified over 4 years ago

1
**RADIO WAVES, MICROWAVES, INFRARED, VISIBLE, ULTRAVIOLET, X-RAYS, GAMMA RAYS**

HIGH< wavelength LOW LOW frequency >HIGH

2
**Write down the equation that expresses this relationship. E=hf**

What is the relationship between energy and frequency? The higher the frequency of a wave, the higher the energy. Write down the equation that expresses this relationship. E=hf ENERGY = PLANCKS CONSTANT X FREQUENCY Which wave in the electromagnetic spectrum has the most energy? Gamma Rays, as they have the highest frequency.

3
**What is a photon? A quantum of energy from electromagnetic radiation.**

Electromagnetic radiation can be described as a particle and a wave. The photoelectric effect can only be described with the particle model. A light is shone onto a metal. If the frequency of the light is above the threshold frequency, it can supply the metal’s electron with enough energy to escape the surface of the metal. The extra energy (above the work function) determines the speed the electron leaves at.

Similar presentations

OK

Electromagnetic Spectrum. -is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic.

Electromagnetic Spectrum. -is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic.

© 2018 SlidePlayer.com Inc.

All rights reserved.

By using this website, you agree with our use of **cookies** to functioning of the site. More info in our Privacy Policy and Google Privacy & Terms.

Ads by Google

Mp ppt online counselling 2013 Ppt on cleanliness of surroundings Ppt on eye of tiger Ppt on nitrogen cycle and nitrogen fixation example Ppt on tb treatment Ppt on computer languages wiki Ppt on limits and derivatives in calculus Ppt on disk formatting software Ppt on planet saturn Ppt online examination project in php