How can you test how well different surfaces emit radiation?

Q: Two parallel disks of diameter D = 3 ft separatedby L = 2 ft are located directly on top of each…

A: Given,

Q: how infrared spectroscopy work?

A: Answer Infra red spectroscopy used infra red radiation to excite the molecules.

Q: Give some examples of two types of radiations.

A: Radiation is defined as the energy which travels through space in the form of waves or particles.…

Q: pplications of Infrared wa

A: Radiation in the electromagnetic spectrum is categorized by wavelength. Short wavelength radiation…

Q: At the beach, you can get a sunburn while under the shade of an umbrella. Explain the statement?

A: Sun burn is a radiation that affects the tissues upon over exposure to UV rays.

Q: QUESTION 7 Name four (4) factors that affect the amount of radiation received by a surface A from…

A: Here, since the question is not specific. So if we were to assume that the radiation discussed here…

Q: When the wavelength of solar radiation increases frequency increases. Select one: True False

A:

Q: What is the frequency of an ultraviolet photon with wavelength 119 nm?

A: Given data The wavelength of the photon is given as λ=119 nm.

Q: If the energy received by 2 m² area in 350 seconds is 4480 KJ. Find the value of Solar constant ?

A: Given data ,   Energy  =  E   Time  =   t    Area  =  A      To find ,     Solar constant

Q: 4. Which statement explains why microwaves are used in satellite communication? * O It has…

A: Step1: Overview  Microwaves can make it through the ionosphere, while lower frequency waves tend to…

Q: What part of the visible electromagnetic spectrum is most absorbed by water?

A: Water molecules does not exhibit rotational effects, hence the absorption area only due to the…

Q: what is the colour of peak frequency of solar radiation?

A: Visible solar radiation consists of wavelengths ranges from violet to red. In this range, violet…

Q: he surface temperature of the Sun is 5000℃. a) Find the magnitude of the peak wavelength of…

A:

Q: 5. The linear attenuation of the intensity of incident radiation on a material is affected by kind…

A: Part 1 We know I =Io e-μx μ = attenuation coefficient x= thickness Attenuation  of intensity depend…

Q: What is the color of the peak frequency of solar radiation?

A: Peak frequency is defined as the maximum energy frequency. For example, the audio tones secured in…

Q: Calculate the average wavelength associated with an 150.0 lb athlete who covers 115 m in minute.

A: Given,Speed of athlete, v = 115 m/min = 1.91 m/sMass of athlete, m = 150 lb = 68.03 kg

Q: Estimate the peak wavelength of light emitted from the pupil of the human eye (which approximates a…

A:

Q: when a certain amount of violet light and yellow light shine on a metal surface only violet light…

A: When yellow and violet light are shone on a metal surface, if just one of the colours produces an…

Q: How can a person detect infrared rays without an instrument?

A:

Q: Write an equation that shows the relationship between the intensity of radiation falling on a…

A: Required  relationship between intensity-of radiation falling on a material and it’s thickness

Q: 9) Rank in order of increasing wavelength from smallest to largest (a) X-rays, UV , Visible Light,…

A:

Q: What is the relationship between the radiation intensity and the distance of the source?

A: Intensity obeys inverse square law ie intensity of radiation varies inversely with the square of…

Q: Which of the following does NOT belong in the electromagnetic spectrum: O a. Ultrasonic O b.…

A: Given - Ultrasonic ,ultraviolet , microwaves, x-rays

Q: When you stand outdoors in the sunlight, why can you feel the energy that the sunlight carries, but…

A:

Q: How does the radiation pressure exerted on a black wall by a laser beam, compare to the radiation…

A: The formula for the radiation pressure exerted on the wall due to an incident laser beam is: The…

Q: What is the difference between the rates of radiation emitted by the surface and the radiation.

A: Rate of radiation and radiation

Q: Why is the radiation analysis of enclosures that consist of black surfaces relatively easy? How is…

A: Black body or black surfaces are perfect emitter and reflector of radiations and their reflectivity…

Q: What form of electromagnetic radiation can most effectively penetrate human tissue? O visible light…

A: Electromagnetic radiation with shorter wavelengths penetrates materials most effectively.

Q: Which type of radiation would not be deflected by an electric field?

A: The answer is below

Q: What is the relationship between radiation intensity and distance? Derive a mathematical expression…

A: 1)The intensity of any radiation is inversly proportional to the square of the…

Q: Give benefits and risks of electromagnetic radiation

A: To illustrate the benefits and risks of electromagnetic radiation.

Q: The number of polarization modes of phonons: O a. depends on the types of atoms available. In the…

A: Required : Number of polarization modes of phonons.

Q: How can infrared radiation be detected?

A: Infrared radiation is emitted by all living organisms in the form of heat . Although our eyes cannot…

Q: Photons with a wavelength of 579 nm in air enter a plate of flint glass with index of refraction n =…

A: Write the given values of the problem- Wavelength(λ0)λ0=579 nmIndex of refraction(n)n=1.66

Q: The air in a dark, smoky room often looks bluish when illuminated by white light. What creates this…

A: Given statement : "The air in a dark, smoky room often looks bluish when illuminated by white light"…

Q: Why are infrared rays often called heat waves?

A: When infrared rays fall on object, they cause entire atoms and molecules to vibrate. And due to…

Q: Find the intensity of the total radiation falling on an object in which the diffuse radiation is…

A:

Q: 2. If light passes through a piece of tinted glass, 35% is absorbed. Then, it passes through second…

A: Given Data: The percentage of light absorbed by the first tinted glass is: A1=35% The percentage of…

Q: A small body is placed inside of a spherical stainless steel chamber with a diameter of 3 m. The…

A:

Q: A polish surface will receive and emit the minimum amount of energy. Select one: O a. False O b.…

A: We know that good absorber are also good emmitter.