Two spherical waves with the same amplitude, A, and wavelength, lamda, are spreading out from two point sources S1 and S2 along one side of a barrier. The two waves have the same phase at positions S1 and S2. The two waves are superimposed at a position P. If the two waves interfere constructively at P what is the relationship between the path length difference dx = d2 - d1 and the wavelength. If the two waves interfere destructively at P, what is the relationship between the path length difference and the wavelength.
3. What does it mean to say that two sources of waves are coherent, for instance, the waves in questions 2 above? If the sources in question 2 were two flashlights, would you observe interference at P? Explain.

Answers

Answer 1

The relationship between the path length difference dx and the wavelength lambda when the two waves interfere constructively at position P is given by dx = n * lambda, where n is an integer.

This means that the path length difference between the two waves must be an integer multiple of the wavelength for constructive interference to occur. When the two waves interfere destructively at position P, the relationship between the path length difference dx and the wavelength lambda is given by dx = (n + 1/2) * lambda, where n is an integer. This means that the path length difference between the two waves must be a half-integer multiple of the wavelength for destructive interference to occur.

When two sources of waves are coherent, it means that they have a constant phase relationship with each other, which means that they have the same frequency and wavelength. In the case of the waves in question 2, since they have the same amplitude, wavelength, and phase at positions S1 and S2, they are coherent.
If the sources in question 2 were two flashlights, interference would not be observed at position P because the light waves from the two flashlights would not be coherent. The light waves from the two flashlights would have different frequencies, wavelengths, and phases, which would result in a random pattern of light at position P rather than interference.

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Related Questions

if the charge of the force is doubled would the force double

Answers

Answer: The electrostatic force between two point charge particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. So, if you double the individual charges while keeping the same distance, the net electrostatic force will be four times the previous value.

Explanation:

Since, we know

F = (k×q1×q2)/r²

When the charges are doubled, we have :

F' = (k × 2q1 × 2q2)/r²

F' = 4 (k×q1×q2)/r²

Thus,

F' = 4F

Hence, the force becomes 4 times its initial value.

Will the gravitational force between 2 objects increase or decrease if the distance between them decreases.

Answers

Answer:

increase

Explanation:

The formula for the gravitation for of attraction is:

[tex]F = \dfrac{Gm_1m_2}{r^2}[/tex]

It implies that the force of attraction is inversely proportional to the square of the distance. i.e.

[tex]F \infty \dfrac{1}{r^2}[/tex]

where;

G = gravitational constant

m = mass; &

r = distance between the two objects.

Now let's assume that the distance between is reduced from 1 to half;

Then:

[tex]F \infty \dfrac{1}{\Big (\dfrac{r}{2} \Big)^2}[/tex]

[tex]F \infty \dfrac{4}{r^2}[/tex]

Thus, the new gravitational force of attraction increased by a factor of 4.

What does attributed mean

Answers

Answer:

attribute is defined as a quality or characteristic of a person, place, or thing

Explanation:

Answer:

regard something as being caused by (someone or something).

Explanation:

Online dictionary


2. True or False: Molecules always vibrate at the same speed??

Answers

Answer:

False

Explanation:

There are 3 states of matter, and all states have molecules. These molecules vibrate in different speeds, depending on the mass, weight, and stae off matter of the object.

What will happen in the next moment for the girl on the swing?

1.Fill in wether quantities will increase, decrease, or stay the same.

2. Support your answer in the table below

Answers

Answer:

Increase, same, same

Explanation:

Can anyone help in physics plz

Answers

Answer:

The answer is B. 8000.

Explanation:

She gained 10,000J , but when she reached the bottom she was at 2,000J. All you need to do is 10,000-2,000 and you get 8,000. So the answer is 8,000J.

Can u please help mee?
1 Calculate the momentum in each of these cases.
a A car of mass 1000 kg traveling at 31.6 m/s
b A train with a mass of 120 000 kg and a velocity of 40 m/s (about 90 mph)

Answers

Answer:

a

Explanation:

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An object has a kinetic energy of 25 J and a mass of 34 kg, how fast is the object moving?

Answers

It moves about 1,21 m/s

A ball dropped and accelerates downwards at a rate of 10m/s^2 for 15 seconds how much will the balls velocity increase

Answers

Answer:

v = 150 m/s

Explanation:

Given that,

The acceleration of the ball, a = 10 m/s²

Time, t = 15 s

We need to find the increase in ball's velocity. When it is dropped its initial velocity is equal to 0. Let v be the velocity,

v = u+at

v = 0 +10(15)

v = 150 m/s

So, the ball's final velocity is 150 m/s.

_____ is a area of darkness

Answers

Answer:

Shadow

Explanation:

Shadow is a area of darkness.

When sunlight falls on an object ot blocks the light from getting onto the surface . Hence, as light does not falls on that region it is dark. Hence, the shadow is the area of darkness.

Answer:

shadow is a area of darkness

An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. At room temperature, this element is a very stable gas. How many neutrons are in this atom?

Answers

Answer:

12 neutrons

Explanation:

The number of protons also shows the atomic number. Therefore the element in question is Krypton (Kr), which also is a noble gas.

Neutrons = Mass number - protons - electrons

Here neutrons = 84 - 36 - 36 = 12

Match each word to it's correct meaning.
1. conduction
A.resistance to motion between two objects in contact
2. convection
B.something that will flow
3. fluid
C.measure of how much heat energy a substance has
4. friction
D.transmission of heat by the transferring of energy from one particle to another
5. temperature
E.transfer of heat by the motion of the particles of a gas or fluid

PLS PLS PLS NEED HELP ONLY HAVE A LITTLE BIT TILL I HAVE TO SHOW ME PARENTS ME GRADES AND I CANT HAVE ANYTHING OVERDUE

Answers

Answer:

you know the answer i answered it before on a question 0-0

Explanation:

A vehicle of mass 3200kg moving with a velocity of 10m/s increases it's velocity to 20m/s in 5 sec. calculate the magnitude of the force exerted on the engine​

Answers

Answer:

xitxutdtidtiittieitetdtdt

Answer:

Please find the attached file

Explanation:

Where do you weight more on top of Mt. Everest (Highest Mt. in the world) or at the beach

They are the same

Mt Everest

The beach

Not enough information

Answers

You weigh slightly more at the beach than on top of a mountain, because at the beach, you're closer to the center of the Earth.

10 POINTS and WILL MARK AS A Brainlest PLEASE

Answers

Answer:

240 cm/sec

Explanation:

The speed line is closest to 240sec at 60cm.

Hope this helps! :)

240 cen/ sec :)))))

ordinary kriging method assume that​

Answers

ears

Explanation:

I want to eat your ears

lab number 14: sudden stops hurt newtons first law

Answers

Answer:

you want to know newtons first law here.

Explanation:

An object that is at rest stays at rest or stays in motion.

what is mass in physics​

Answers

Answer:

Mass, in physics, quantitative measure of inertia, a fundamental property of all matter. It is, in effect, the resistance that a body of matter offers to a change in its speed or position upon the application of a force. The greater the mass of a body, the smaller the change produced by an applied force.

Explanation:

pls mark as brainliest

Answer:

Mass, in physics, quantitative measure of inertia, a fundamental property of all matter. It is, in effect, the resistance that a body of matter offers to a change in its speed or position upon the application of a force. The greater the mass of a body, the smaller the change produced by an applied force.

Explanation:

Hope that helps! :)

in which of the following is the molecules of water moving fatest A. stream. B. ice. C. ice water mixture. d. water.​

Answers

Answer:

steam

Explanation:

particles move faster in a gas than in a liquid or solid

pls help i’ll give brainliest if you give a correct answer!!

Answers

Answer: the last one

Explanation:

Answer:

C

Explanation:

A force of 100 N will exert the greatest pressure on an area of

Answers

Answer:

It will apply the greatest pressure of an area of 1.

Explanation:

To find pressure use the formula P = F/A

P = 100/1

P = 100

Answer:

10 N / cm^2

Explanation:

The Formiula is P = F / A

P = presure

F = Force in Newtons

A = area.

The answer is the smaller the area the larger the pressure.

The smallest area you have given us is 10 cm^2

The Pressure = 100N / 10 cm^2

Pressure = 10 N/cm^2  

Note: the units are not exactly standard units, but I've given the answer the way the question offers the units.

what is the answer , please.​

Answers

Answer:

39.2m/s

Explanation:

V = 0

V = u - gt

0 = u - 9.8×4

u = 39.2

True or false: Everything in the universe works with harmony because of balanced energy

Answers

Answer:

Explanation:

True

Answer:

True..................

A 615 watt refrigerator runs 24 hours/day. How much energy is used per month (30 days)?

Answers

Answer:

14.76

Explanation:

If you put it in the calculator it would show

what is biodiversity​

Answers

Answer:

Biodiversity is the variety and variability of life on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.

Explanation:

hope it helped <3

will mark as brainliest !! plz answer it
Plzzz answer with explnation!!!
the value of acceleration due to gravity (g) will be maximum at:
a) 1/2 of the radius of earth
b) 1/4 of the radius of earth
c) 1/8 of the radius of earth

Answers

Answer:

1/4

Explanation:

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Don’t listen to the other guy. I answered on your other comment!

a effort of 100n can raise a load of 2000n in a hydraulic press. calculate the cross-sectional area of a small piston in it. The cross-sectional area of a large piston is 4m^s​

Answers

Answer:

[tex]A_{1}[/tex] = 0.2 [tex]m^{2}[/tex]

Explanation:

The pressure on the pistons is given as;

Pressure = [tex]\frac{Force}{Area}[/tex]

So that,

Pressure on the small piston = [tex]\frac{F_{1} }{A_{1} }[/tex] and Pressure on the large piston = [tex]\frac{F_{2} }{A_{2} }[/tex]

Thus,

[tex]\frac{F_{1} }{A_{1} }[/tex] = [tex]\frac{F_{2} }{A_{2} }[/tex]

Given that: [tex]F_{1}[/tex] = 100 N, [tex]F_{2}[/tex] = 2000 N, [tex]A_{2}[/tex] = 4 [tex]m^{2}[/tex].

[tex]\frac{100}{A_{1} }[/tex] = [tex]\frac{2000}{4}[/tex]

[tex]A_{1}[/tex] = [tex]\frac{100*4}{2000}[/tex]

    = [tex]\frac{400}{2000}[/tex]

    = 0.2

[tex]A_{1}[/tex] = 0.2 [tex]m^{2}[/tex]

The area of the small piston is 0.2 [tex]m^{2}[/tex].

If there is zero total force acting on the refrigerator, the refrigerator would

A) slow down
B) speed up
C) remains the same speed
D) slow down, change direction and then speed up going the other way
E) remains at the same speed, but changes direction

Answers

Answer:

c

Explanation:

this is because newton's first law of motion states that every object will continue in its state of rest or uniform motion in a straight line unless a resultant force acts on it

so if the resultant force on the refrigerator is 0N, but it was initially moving, it will continue in its motion in a straight line.

it will not change direction since it will continue in its uniform motion.

hope this helps

please mark it brainlistt

How many kgs are in 1000N?​

Answers

Answer:

this much I think 101.9716212978

Answer:

approximately 102kg

Explanation:

1 kg on the surface of the Earth weighs 9.80665 N

1000 N = 1000/9.80665 kg = 102 kg

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SI UNIT OF GRAVITY is the​

Answers

Answer:

G

Explanation:

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