What determines if an electromagnetic wave emitted from an object is a visible light wave or a wave of infrared light?

What determines if an electromagnetic wave emitted from an object is a visible light wave or a wave of infrared light?

What determines if an electromagnetic wave emitted from an object is a visible light wave or a wave of infrared radiation? The energy available for accelerating charged particles determines this.

What conditions are necessary for two light waves to form an interference pattern of bright lines and dark areas?

What conditions are necessary for two light waves to form an interference pattern of bright lines and dark areas? Two light beams from a single source striking a card with two small parallel slits in phase with each other are necessary.

When a light wave is absorbed by an object what happens to the absorbed light energy quizlet?

Absorption is the process of converting light energy into thermal energy when light rays hit an atom and light’s energy is transferred to the atom. You just studied 11 terms!

Which of the following best describes why we say that light is an electromagnetic wave?

Which of the following best describes why we say that light is an electromagnetic wave? The passage of a light wave can cause electrically charged particles to move up and down.

What determines the frequency of an electromagnetic wave?

Electromagnetic waves vary in wavelength and frequency. Longer wavelength electromagnetic waves have lower frequencies, and shorter wavelength waves have higher frequencies. Higher frequency waves have more energy.

What are the criteria to be satisfied for interference to take place?

(i) In interference the source of light should be monochromatic. (ii) Here waves should be of the same frequency. (iii) Direction of waves should also be the same. (iv) The amplitudes of both the waves should also be the same.

What criteria needs to be met to make a standing wave?

In general, standing waves can be produced by any two identical waves traveling in opposite directions that have the right wavelength. In a bounded medium, standing waves occur when a wave with the correct wavelength meets its reflection.

What happens to light waves when they are absorbed?

The absorption of light makes an object dark or opaque to the wavelengths or colors of the incoming wave: Glass and water are opaque to ultraviolet light, but transparent to visible light. By which wavelengths of light are absorbed by a material, the material composition and properties can be understood.

What happens to light as it interacts to matter?

When light interacts with matter it can do one of several things, depending on its wavelength and what kind of matter it encounters: it can be transmitted, reflected, refracted, diffracted, adsorbed or scattered. When this happens the light slows down and changes direction.

Which of the following describes the light that can be detected from a person quizlet?

Which of the following describes light that can be detected from a person? The person reflects many wavelengths of visible light and emits a continuum of wavelengths of infrared light.

Do you need to know physics to understand electromagnetic radiation?

Instead, you just need to know the fundamental principles describing the electromagnetic radiation that originates from an object, and how that radiation travels through space (which we’ll get into soon). For electromagnetic radiation, there are four “laws” that describe the type and amount of energy being emitted by an object.

What is the difference between electromagnetic radiation and radio waves?

They are produced in different processes and are detected in different ways, but they are not fundamentally different. Radio waves, gamma-rays, visible light, and all the other parts of the electromagnetic spectrum are electromagnetic radiation.

Which electromagnetic waves do not reach the earth’s surface?

Only portions of radio and visible light reach the surface. (Credit: STScI/JHU/NASA) Most electromagnetic radiation from space is unable to reach the surface of the Earth. Radio frequencies, visible light and some ultraviolet light makes it to sea level. Astronomers can observe some infrared wavelengths by putting telescopes on mountain tops.

Does all matter emit radiation at the same wavelength?

While all matter emits radiation at all wavelengths, it does not do so equally. This is where the next radiation law comes in. Wein’s Law states that the wavelength of peak emission is inversely proportional to the temperature of the emitting object. Put another way, the hotter the object, the shorter the wavelength of max emission.