16th October 2019

unl

17

How are wavelength and energy related directly or inversely?

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s is called Planck's constant. Since the energy goes up as the frequency increases, the energy is directly proportional to the frequency. Because frequency and wavelength are related by a constant (c) the energy can also be written in terms of wavelength: E = h. That is, energy in inversely proportional to wavelength.

Just so, what is the formula for wavelength?

Wavelength is the distance between the crests of a wave. Wavelength is represented with the Greek letter lambda: λ. It is equal to the velocity of the wave, divided by the frequency.

How is energy related to wavelength?

The greater the energy, the larger the frequency and the shorter (smaller) the wavelength. Given the relationship between wavelength and frequency — the higher the frequency, the shorter the wavelength — it follows that short wavelengths are more energetic than long wavelengths.

How do you calculate the wavelength of a wave?

If you want to calculate the wavelength of a wave, then all you have to do is plug the wave's speed and wave's frequency into the equation. Dividing speed by frequency gives you the wavelength. For example: Find the wavelength of a wave traveling at 20 m/s at a frequency of 5 Hz.

1

How is energy related to wavelength?

The greater the energy, the larger the frequency and the shorter (smaller) the wavelength. Given the relationship between wavelength and frequency — the higher the frequency, the shorter the wavelength — it follows that short wavelengths are more energetic than long wavelengths.

2

Is wavelength directly or inversely proportional to energy?

s is called Planck's constant. Since the energy goes up as the frequency increases, the energy is directly proportional to the frequency. That is, energy in inversely proportional to wavelength. In short, a photon can be described by either its energy, frequency, or wavelength.

3

Is wavelength inversely proportional to frequency?

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.

4

What is C in energy equation?

Formula. The equation for photon energy is. Where E is photon energy, h is the Planck constant, c is the speed of light in vacuum and λ is the photon's wavelength. As h and c are both constants, photon energy changes with direct relation to wavelength λ.

5

Are frequency and wavelength directly or inversely proportional?

From this equation, it is clear that the energy of a photon is directly proportional to its frequency and inversely proportional to its wavelength. Thus as frequency increases (with a corresponding decrease in wavelength), the photon energy increases and visa versa.

6

How does the wavelength affect the frequency?

The data convincingly show that wave frequency does not affect wave speed. An increase in wave frequency caused a decrease in wavelength while the wave speed remained constant. The speed of the waves was significantly higher at higher tensions.

7

How are frequency and wavelength related to pitch?

People can hear sounds that range from about 20 to about 17,000 hertz. The word that musicians use for frequency is pitch. The shorter the wavelength, the higher the frequency, and the higher the pitch, of the sound. In other words, short waves sound high; long waves sound low.

8

Are frequency and wavelength directly or inversely related?

Wavelength is the characteristics of wave. From this equation, it is clear that the frequency of the wave is inversely proportional to its wavelength. The constant of proportionality is the speed of the wave. Since the wave is electromagnetic in nature hence the velocity of the wave is equal to the speed of the light.

9

How frequency is measured?

Usually frequency is measured in the hertz unit, named in honor of the 19th-century German physicist Heinrich Rudolf Hertz. The hertz measurement, abbreviated Hz, is the number of waves that pass by per second. For example, an "A" note on a violin string vibrates at about 440 Hz (440 vibrations per second).

10

Which visible color has the highest frequency?

Answer 1: The color purple, or equivalently violet, is actually on the end of the visible electromagnetic spectrum, having the highest frequency of any light wave. The reason we see different colors is because of this difference in frequency, where violet light has higher frequency of light waves than blue light.

11

What happens to the electrons in an atom when they absorb energy?

When an electron absorbs energy, it jumps to a higher orbital. An electron in an excited state can release energy and 'fall' to a lower state. When it does, the electron releases a photon of electromagnetic energy.

12

Where do the waves get their energy from?

Answer and Explanation: Ocean waves get their energy mainly from the winds that blow across their surface. As the winds blow, friction builds up and causes the water to be pulled along, forming a crest.

13

Which region of the electromagnetic spectrum has the shortest wavelength?

The only region in the entire electromagnetic spectrum that our eyes are sensitive to is the visible region. Gamma rays have the shortest wavelengths, < 0.01 nanometers (about the size of an atomic nucleus). This is the highest frequency and most energetic region of the electromagnetic spectrum.

14

What happens to the frequency of a wave if its energy increases?

As a wavelength increases in size, its frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer.

15

Is the relationship between frequency and wavelength direct or inverse?

An inverse relationship exists; electromagnetic radiation with shorter wavelengths is more energetic. The relation- ship between energy and frequency is given by the equation, E = hν, where h is Planck's constant. A direct relationship exists; electromagnetic radiation with a higher frequency is more energetic.

16

What is the speed of all electromagnetic waves?

In a vacuum, all electromagnetic waves travel at approximately 3 x 10⁸ m/s - the fastest speed possible. When electromagnetic waves travel through matter (for example, light through air or glass), they travel a bit slower than this but rarely less than half as fast as in a vacuum.

17

What happens to the energy of the electron when it absorbs a photon?

When an electron is hit by a photon of light, it absorbs the quanta of energy the photon was carrying and moves to a higher energy state. One way of thinking about this higher energy state is to imagine that the electron is now moving faster, (it has just been "hit" by a rapidly moving photon).

18

Which color is the most energetic?

Red waves have a relatively long wavelength (in the 700 nm range), and violet waves are much shorter - roughly half that. Because violet waves have the shortest wavelength of the visible light spectrum, they carry the most energy.

19

How the frequency and period of a wave are related?

While period is measured in seconds per cycle, frequency is measured in cycles per second. Consider our wave with a period of 2 seconds. Since the wave completes one cycle every two seconds, then its frequency is one half or 0.5 Hz. So, you see - period and frequency are reciprocals of each other.

20

Why does the frequency of a wave increases as the wavelength decreases?

This can be viewed as an increase in the wavelength of the wave. A increase in wavelength at a constant speed is associated with a decrease in frequency since waves follow the equation v=f*λ, where λ is the wavelength and f is the frequency.

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