Choose the BEST answer to the following: The color of light most intense in the solar radiation curve is (a) infrared. (b) red. (c) yellow-green. (d) violet.

Q: Why do objects illuminated by moonlight lack color?

A: Objects illuminated by moonlight do not lack color. It is just that the intensity of moonlight is…

Q: What is the circle of illumination

A: THE  CIRCLE OF ILLUMINATION:-  The imaginary line that separates light from the darkness and day…

Q: What do the various colors displayed in the flame of burning log represent?

A:

Q: What is electromagnetic spectrum and why is it useful?

A: The electromagnetic spectrum is the classification of the electromagnetic waves based on the…

Q: A quartz prism is required for obtaining the spectrum of the ultraviolet light?

A: Glass is a good absorber of ultraviolet radiation. When the light rays are passes through normal…

Q: How does light relate to the electromagnetic spectrum?

A: Electromagnetic wave is the wave of electromagnetic field. The electromagnetic wave has electric and…

Q: How are Ultraviolet waves produced?

A: Ultraviolet radiation is generated naturally from the Sun and artificial sources such as…

Q: You have a blue spotlight and eight pieces of paper in various colors. Classify each piece of…

A: Given : Blue spot light and want to classify eight given colors Blue, Green, White, Black, Red,…

Q: Name the material of prism required for obtaining the spectrum of (a) ultraviolet light (b) infrared…

A:

Q: For a blackbody object of given volume, which shape will it emit the least radiation? Why?

A:

Q: What happens to light when it passes from rarer medium to denser medium?

A: When a beam of light passes from rarer medium to denser medium, it refracts or bends towards the…

Q: Which of the following physicists discovered that white light was a combination of all colours of…

A:

Q: Based on your observation, what is the direction of the circulation of red food color? blue food…

A: As the heart beats, it pumps blood through a system of blood vessels called circulatory system.…

Q: Why infrared radiations are used for photography in dark?

A:

Q: Do you have an idea why the sky is blue? Why the clouds are white? Why the sunset is red or reddish…

A: why the sky is blue? The gases and dust particles in the atmosphere scatter the sunlight that…

Q: Who was the first person to obtain the spectrum of sunlight?

A: In 1666, Sir Issac Newton performed prism experiment to obtain the spectrum of sunlight. In his…

Q: Your friend says that the reason the distant dark mountains appear blue is because you’re looking at…

A: I agree with the reason that sky is the reason for the distance dark mountains to appear blue.

Q: What is the complete mixture of all of the color wavelengths that make up the visible spectrum?

A: The visible light spectrum is the section of the electromagnetic radiation spectrum that is visible…

Q: Use the terms luminous and illuminated to describe the visual relationship between the sun and the…

A: Luminous objects are generate their own light by the production of energy. Illuminated objects are…

Q: Why is the sky a darker blue when you are at high altitudes? (Hint: What color is the “sky” on the…

A: The color of sky is actually black, and in the morning due to scattering of sunlight we see a bluish…

Q: Give a list of atleast five radiations in order of their increasing wavelengths.

A: If a radiation have highest wavelength, then its frequency is lowest.

Q: How will the color of the sky appear different on humid days compared to days of a low humidity?…

A: Generally we see the color of the sky is Blue. Actually the sky do not have any color. Color…

Q: Relate how astronomers use telescopes and electronics to analyze the electromagnetic spectrum to…

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Q: How is the wavelength of light related to its frequency?

A: Wavelength is defined as it is the distance between the identical points in the adjacent cycles of…

Q: About how much of the measured electromagnetic spectrum does light occupy?

A: An electromagnetic spectrum consists of wise range of waves.  Gamma Rays, X rays, Ultraviolet rays,…

Q: The colors are not always the same in a spectrum and in a rainbow

A:

Q: Your friend says that light passing the Sun is bent whether or not Earth experiences a solar…

A: Yes, the light passing the Sun is always bent because of the effect of the Sun's gravity.

Q: What are the properties of Light?

A: Light can act as a wave as well as a ray. Following are the properties of light: Reflection of…

Q: Choose the BEST answer to the following: A high-temperature source radiates relatively (a) short…

A: Step 1Let f is the frequency and T is the temperature, then it is known that

Q: Were you able to infer the literary meaning of the word " light"?

A: The quanta of light is Photon. So, we can say that " Light is the wave of photon".

Q: What do you mean by photochromic lenses?

A: To describe a photochromic lens.

Q: What is ultraviolet light?

A:

Q: List the three models of light?

A: There are three model of light by which we can describe the nature of light.

Q: Which of the following is true about light?

A: Light acts as a particle and wave at the same time. In quantum mechanics, wave and particle has dual…

Q: 19) If the atmosphere were twice as thick as it currently is (extending farther into space), what…

A: The atmosphere appears blue and the Sun appears yellow since the lower wavelengths of the light are…

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.