All categories

3 years ago

What's the difference between a wavelength and an an amplitude?

2 answers:

7 0

A wave is propagated by a point or a particle in a medium that vibrates or oscillates between its mean position and a maximum displacement position.

Amplitude is the maximum displacement from the mean position.

Due to the vibration of the particle, neighbouring particles get disturbed and they also oscillate but some small time (phase) behind.

Along the direction of propagation of the wave, the wave travels a wavelength distance in the same time that is taken by a particle to complete one oscillation.
It is the distance between two successive crests (maximum displacement positions - When a snap shot of wave is taken at one point of time.

valkas [14]3 years ago

3 0

Wavelength - the distance from one wave crest or trough to another wave crest or trough. Amplitude - the distance from the median point or "middle" of the wave straight up to a crest (a maximum) or straight down to a trough (or minimum), which is the peak amplitude; or the distance from a trough straight up to a crest, or a crest straight down to a trough, called peak-to-peak amplitude.

You might be interested in

In order to request the records of a prior case for review and possible reconsideration, the Supreme Court of the United States

11Alexandr11 [23.1K]

C. A writ of certiorari

4 0

3 years ago

Read 2 more answers

Calculate the refractive index for a substance where the angle of incidence is 300 , the angle of refraction is 600 , and the re

Sophie [7]

Answer:

η₁ = 2.6

Explanation:

Here, we will use snell's law to calculate the refractive of the substance:

$\frac{\eta_2}{\eta_1} = \frac{Sin\theta_1}{Sin\theta_2}$

where,

η₁ = refractive index of first substance = ?

η₂ = refractive index of second substance = 1.5

θ₁ = angle of incidence = 30°

θ₂ = angle of refraction = 60°

Therefore,

$\frac{1.5}{\eta_1} = \frac{Sin\ 30^0}{Sin\ 60^0}$

η₁ = 2.6

7 0

2 years ago

A tennis ball is dropped from 1.3 m above

Dominik [7]

Answer:

2.65m/s

Explanation:

Using the equation of motion:

v² = u²+2a∆S where

v is the final velocity

u is the initial velocity

∆S is the change in distance

a is the acceleration

Given

u = 0m/s

a = 9.8m/s²

∆S = 1.3-0.943

∆S = 0.357m

Substituting the given parameters into the formula

v² = 0²+2(9.8)(0.357)

v² = 0+6.9972

v² = 6.9972

v=√6.9972

v = 2.65m/s

Hence the velocity at which it hit the ground is 2.65m/s

4 0

2 years ago

A block weighing 30kg is moved at a constant speed over a horizontal surface by a force of 100 N applied parallel

DENIUS [597]

30-100=70^3•É+ 30 =3^E

5 0

2 years ago

Why does a comet's tail point away from the Sun? 1Choice 1 The solar wind blows the tail away from the Sun. 2 It is being pulled

AnnyKZ [126]

Choice 1

The Sun's radiation and solar wind cause the dust and gas around the comet (coma) to stretch the coma. The solar wind electromagnetically blows the ions in the coma away.

4 0

3 years ago