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## What is the relationship of wave frequency and energy?

To summarise, waves carry energy. The amount of energy they carry is related to their frequency and their amplitude. The higher the frequency, the more energy, and the higher the amplitude, the more energy.

## What is the relationship between energy frequency and wavelength quizlet?

The greater the energy, the larger the frequency and the shorter (smaller) the wavelength.

## What is the relationship between energy wavelength and frequency of radiation?

The energy associated with EM radiation is proportional to frequency and inversely proportional to wavelength. Thus, EM waves with shorter wavelengths have more energy.

## What is the relationship between the wavelength and frequency of a sine wave?

Assuming a sinusoidal wave moving at a fixed wave speed, wavelength is inversely proportional to frequency of the wave: waves with higher frequencies have shorter wavelengths, and lower frequencies have longer wavelengths.

red

## Which wavelength is longer red or blue?

Blue light has shorter waves, with wavelengths between about 450 and 495 nanometers. Red light has longer waves, with wavelengths around 620 to 750 nm. Blue light has a higher frequency and carries more energy than red light.

Violet waves

red light

## Does red light travel slower than blue?

Because the number of subquantum energy in a red photon is less than that of a blue photon, red photon interactions are less than the blue photon in the medium. So, the red light travels faster than the blue light.

## Is violet or red light faster?

Violet travels the slowest so it is on the bottom and red travels the fastest so is on the top. This is because what is called the index of refraction, (the ratio of the speed of light in a vacuum to the speed of light in a material), is increased for the slower moving waves (i.e. violet).

## Why does blue bend more than red?

The bending occurs because light travels more slowly in a denser medium. The amount of refraction increases as the wavelength of light decreases. Shorter wavelengths of light (violet and blue) are slowed more and consequently experience more bending than do the longer wavelengths (orange and red).

## Why do we see red sunsets?

Within the visible range of light, red light waves are scattered the least by atmospheric gas molecules. So at sunrise and sunset, when the sunlight travels a long path through the atmosphere to reach our eyes, the blue light has been mostly removed, leaving mostly red and yellow light remaining.

## Which Colour photon is more energetic?

Since frequency of violet light is more than that of red light, i.e., vviolet>vred and energy of a photon = hv. So photon of violet light is more energetic than that of red light.

P-waves

Surface waves

Gamma rays

## How do you know which wave has the highest energy?

(b) The wave with the shortest wavelength has the greatest number of wavelengths per unit time (i.e., the highest frequency). If two waves have the same frequency and speed, the one with the greater amplitude has the higher energy.

## Do electromagnetic waves transfer energy?

Electromagnetic waves are transverse waves. Their vibrations, or oscillations , are changes in electrical and magnetic fields at right angles to the direction of wave travel. All electromagnetic waves: transfer energy as radiation from the source of the waves to an absorber.

## Where do electromagnetic waves not transfer energy?

An EM wave can travel without a material medium—that is, in a vacuum or space empty of matter—and does not lose energy as it moves. In theory, an EM wave can travel forever. Because they do not need a medium, EM waves can pass through outer space, which is a near vacuum.

## Do electromagnetic waves change speed?

Electromagnetic waves travel more slowly through a medium, and their speed may vary from one medium to another. For example, light travels more slowly through water than it does through air (see Figure below).

## Why electromagnetic wave can travel in vacuum?

The propagation of electromagnetic waves either in a certain medium or in vacuum is due the the mutual changes between the electric and magnetic field. These variations in electric and magnetic fields fields lead to the transfer of the energy which is carried by the EM wave.

2021-05-14