Fresnels Assumptions
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Huygens - Fresnel principle Fresnel's assumptions visit at https://youtu.be/bchMgoq148k for explanation of the PPT.
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https://app.box.com/s/tacvl9ekroe9hqupdnjruiypvm9rdaneWalmart Business+ and Spark Good for Nonprofits.pdf
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
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Fresnels Assumptions
- 2. Huygens - Fresnel Principle Each point on a wavefront is a source of secondary disturbance, and the secondary wavelets emanating from different points mutually interfere.
- 4. Fresnel’s Assumptions 1.A wavefront is divided into large number of zones called Fresnel zones. Resultant effect at any point (P) will depend on the combined effect of all secondary waves emanating from various zones. To see the resultant effect at point P :
- 5. Fresnel’s Assumptions To see the resultant effect at point P : 2.Effect at a point due to a particular zone will depend on the distance of the point from the zone.
- 6. Fresnel’s Assumptions To see the resultant effect at point P : 3.It will depend up on obliquity factor / inclination factor with reference to zone under consideration. K(θ) ∝ 1 + cos θ