What is dispersion, and how is it related to diffraction and refraction?

Answers

Answer 1

Answer: Refraction is simply the bending of light when it moves from one material into another. If light is beamed at 90° to a surface, no bending happens. But if you shine the light at an angle it will bend one way or another.

    Diffraction is a process in which a beam of light travels through a gap or around a barrier, and spreads out as a result.

   Dispersion is the property that the speed of light in a transparent material is different for different wavelengths. Thus the index of refraction is likewise different.

Related Questions

Alice and Tom dive from an overhang into the lake below. Tom simply drops straight down from the edge, but Alice takes a running start and jumps with an initial horizontal velocity of 25 m/s. Neither person experiences any significant air resistance. Just as they reach the lake below.A) Alice reaches the surface the lake first. B) Tom of reaches the surface of the first. C) Alice and Tom will reach the surface of the lake at the same time. D) Information is not enough
[URGENT] A swimmer wants to end up at a dock due north of her starting position on the south shore of a river. In still water her maximum speed is 1.25m/s. The river has a current flowing 0.35m/s [E].a.) calculate the direction that she must aim herself through the water to arrive at the dock. b.) how long will it take for the swimmer to cross the river, if the distance from the starting point to the dock is 300 m?Please show all your work, thanks
What is refractive index?
Срочно нужно решение задания 5, пожалуйста!!!!!
Which of the following is a typical product of nuclear fission?a. oxygen b. carbon dioxide c. radiation d. water

A person of mass 80 kg stands on Earth's surface. What is his weight?

Answers

Weight is always (mass) times (gravity in the place where you are).

On Earth, acceleration due to gravity is 9.8 m/s² ,
so the person's weight is

(80 kg) x (9.8 m/s²) = 784 newtons .

(about 176.4 pounds)

The answer is 784 newtons. I hope that helps you :]

a stone falls from a ledge and takes 8 seconds to hit the ground. The stone has an original velocity of 0 m/s. How tall is the ledge

Answers

The height of a falling object, h, in terms of the seconds passed, t, is
h = 0.5(-9.8t^2) + v_0t + h_0
0 = -4.9(8)^2 + 0 + h_0
h_0 = 64 * 4.9
= 313.6 meters

Here's a formula that tells the distance covered by an
accelerating object starting from rest. The formula is
very useful, and it's simple enough to memorize:

   Distance = (1/2) (acceleration) (time squared) .

If the object is falling, then the acceleration is gravity, 9.8 m/s²,
and the distance is

   (4.9) (time²) .

In this question,

   D = (4.9) (8²)

   = (4.9 x 64) = 313.6 meters.

Coupla comments:

-- This calculation ignores air resistance.
    We kind of ALWAYS do that, otherwise
    the calculation would be very complicated,
and would need a lot of other numbers
    that we don't know, like the size and shape
    of the falling object, and the density of the air.

-- This is a very big building ... about 1,029 feet.
   In New York City, the Chrysler building and
   the New York Times building are both only
   15 feet taller than that.

Matter is the ability to cause change.

Answers

The statement ‘Matter is the ability to cause change’ is false. Matter is anything that occupies space and has mass. It does not have the ability to change because it represents the bulk of a matter such as solid liquid and gas.

What is the correct formula for work?a. Work = force / time
b. Work = force * distance
c. Work = force / distance
d. Work = mass * acceleration

Answers

The correct formulafor work is option B. Work = force * distance.

What is Work and what is its formula?

In physics, the term "work" has a specific meaning.
Work, in physics, occurs when a force acts on an object to move it some distance from the start point (also called displacement).
Work is calculated as the force times the distance.
In other words, work is equivalent to the application of a force over a distance.
The amount of work a force does is directly proportional to how far that force moves an object.
The work formula is w = F × d.
F is the force, d is the distance, and w is the work.

To know more about work, refer to: https://brainly.in/question/18131759

#SPJ2

Answer:

The answer is B.

Explanation:

The formula for work is force times distance.

The term pressure most nearly refers to which of the following?A. another term for density
B. a property of water near the ocean bottom
C. force per area created by the weight of water
D. the pushing of ocean currents on objects in the ocean

Answers

The correct answer would be C. force per area created by water.

pressure is force per unit area or p=f/a. The pressure at the bottom of the ocean =weight of overlying water /1m^2. Think of it as the weight of a column of water 1 meter square sitting on the ocean floor. so the correct answer is "C".

The grid in a triode is kept negatively charged to prevent...-the variations in voltage from getting too large
-the electrons from being attracted to the grid instead of the anode
-electrons from escaping from the tube containing the triode

Answers

I think the correct answer is the third statement, electron from escaping from the tube containing the triode. The negative charge on the grid repels any electron in the tube. As a result,the flow of current is controlled. If the field is that strong, all current flow will stop resulting to maintaining the electron cloud in the tube.

Answer:

B. the electrons from being attracted to the grid instead of the anode.

Explanation:

just because its the answer

Other Questions

There is little sunlight at high latitudes during the winter, so few crops can grow even if temperatures are regulated. To address this problem, special lamps can be used in greenhouses.These lamps allow plants to grow during the winter months. Scientific knowledge of which topic was necessary to solve this problem?

Susan works 8 hours a day and makes $7.00 per hour. How much money does Susan earn in one week if she works 5 days per week?

What kinds of telescopes are used to measure parallax

How to find the period of a wave