kay4Njamadymorger kay4Njamadymorger

23-01-2017
Physics

contestada

The ultraviolet light that causes suntans (and sunburns!) has a typical wavelength of 300 nm. what is the frequency of these rays?

Respuesta :

scme1702 scme1702

31-01-2017

Using the formula:
v = fλ, where v is the speed of the wave, f is its frequency and λ is its wavelength.
The speed of ultraviolet light is equal to that of light. Therefore:
f = v/λ
f = 3 x 10⁸ / 300 x 10⁻⁹
f = 1 x 10¹⁵ Herz

Answer Link

Otras preguntas

How does the text structure help the author convey his central idea that a prince is judged by the quality of his servants chapter 22 of The Prince

This is the notebook of NamThe tool of the mason is heavyShe prepared the outfit of her childrenThe coat of the boy was tornMr. Van is the friend of Mr. DongThe

Designing shoes is hard work. It will pay off in the end. Identify the sentence that combines the above passage into a complex sentence. Designing shoes is hard

Laura is shy but confident. (person)

state the term used to describe the turning force exerted by the man pushing down on a lever to lift one end of a heavy log

Chọn bốn ví dụ sau Ví dụ nào không phải là phân số A.3/-5 B.1,7/3 C.0/2 D.-13/-4

Zoe walks at a speed of 10 miles/h and jogs at a speed of 20 miles/h.She goes to the park to walk 2 miles on a Monday. How long will she take to jog 2 miles?

Part 1. Exercise 1: Choose one word whose underlined part is pronounced differently. 1/A. activity B. annual C. annoucement D. anniversary 2. A. spirit B. stimu

In a major human artery with an internal diameter of 5mm, the flow of blood, averaged over the cardiac cycle is 5cm3·s−1. The artery bifurcates (splits) into t

A) 60° B) 85° C) 96° D) 40°