Why are infrared rays often called heat waves?

Q: A wavelength of infrared radiation emitted is 25 mm (2.5 x 10-2 m). Show that the energy per photon…

A: Given : Wavelength (λ) = 25 mm = 2.5 x 10-2 m Speed of electromagnetic waves (c) = 3 x 108 m/s To…

Q: Why are there things that are reflective and non-reflective

A: This is not a simple question to answer. There are many factor which includes, why they will reflect…

Q: Find the range of visible wavelengths of light in polystyrene. (Assume that the range of visible…

A:

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

A: A material absorbs light when the natural frequency of oscillation of that material matches with the…

Q: How do photographers make clouds brighter by in contrast with the sky?

A: In order to make photographs more distinctive, especially at times when two parts of the photo are…

Q: What are three or four Quantitative examples of thr light buld or in other words “Incandescent Light…

A: Given: What are three or four Quantitative examples of the light bulb or in other words…

Q: What Is The Principle Of Reversibility of light?

A: The principle of reversibility of light states that light follows the same path if the direction of…

Q: Which have longest wavelengths- light waves, X-rays or radio waves?

A: According to the electromagnetic spectrum the range of wavelength for different type of…

Q: Why do opaque materials become warmer when light shines on them?

A: The incident light energy on the material of the opaque substances vibrates the atoms r molecules of…

Q: Why does the color of a surface affect emissivity?

A: Emissivity of the surface of a colored body is the body's effectiveness to radiate thermal energy.…

Q: Why are infrared waves often called heat waves?

A:

Q: Light can bounce off of things be bent and be absorbe

A: Yes, Light can be bent and absorbed.

Q: when something is painted blue, which colour is most absorbed by it?

A: When an object is painted blue, then the most absorbed colour on that object will be its opposite…

Q: Why will the leaves of a red rose be warmed more than the petals when illuminated with red light?

A: The petals of a red rose reflect all the red light coming from the source, whereas the leaves absorb…

Q: Why does water make a shirt darker?

A: Transparency: When an object is placed in the sight of an eye and a person is still be able to see…

Q: A material that perfectly absorbs light is called: Black Body Albedo Reflective…

A: Black body is a body which absorbs all the incoming wavelengths of light and then even reflects…

Q: Why will the leaves of a red rose be warmed more than the petals when illuminated with red light?…

A: Given: red rose

Q: To keep chickens warm in a chicken coop, why would a CFL be a poor choice compared with an…

A:

Q: The skin reflects most visible and IR-A (near-infrared) radiation

A: The statement is-

Q: Why are sunsets reddish orange on color?

A: Introduction: The lights coming from the sun to the earth get scattered by the particles present in…

Q: Fig. 6.1 shows apparatus that is used to demonstrate some effects of the transfer of energy by…

A: In the given experiment: We need to conclude: (a) Two types of radiation (b)  The reason behind…

Q: If the sunlight were somehow green instead of white, what color clothing would be most advisable on…

A: If the sunlight were somehow green instead of white, then on a very hot day green colored clothes…

Q: When you look at a shirt and it is blue…. WHY IS IT BLUE? What is being absorbed and what is being…

A: What colour our eye see is the reflected colour which an object reflects. Rest of the colours are…

Q: Why does smoke from campfire look blue against trees near the ground but yellow against the sky?

A: We see the scattered light from the smoke which is blue in color near the ground, while in the sky,…

Q: The kind of heat transfer that travels through space in electromagnetic waves is

A: Heat is form of energy.

Q: Choose the BEST answer to the following: The model of light supported by the photoelectric effect is…

A:

Q: What is the fate of the energy in infrared light that is incident on glass?

A: The visible light frequency is higher than the middle infrared wave frequency. As a result all the…

Q: 16. From the list below, select ALL that are examples of radiation: O electromagnetic waves O light…

A: radiation is energy transferred from one location to another location without any medium.

Q: which warms more quickly in sunlight -a colourless or coloured piece of glass? Also explain Why?

A: A coloured glass can absorb all the colours except its own colour while the colourless glass can’t…

Q: What determines whether a material is transparent or opaque?

A:

Q: Are ultraviolet rays used to sterilize equipment in hospitals?

A: Given:  Ultraviolet rays

Q: Which of the following colors indicates an object of the lowest temperature? (A) Violet (B) Blue (C)…

A: Answer:- (B) Blue    Blue colors indicate an object of the lowest temperature.    Because    In any…

Q: If the sunlight were somehow green in color instead of white, what color clothing would be advisable…

A: Since green color will absorb all color frequencies except green so when sunlight of green color…

Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.