The colors of peacocks and hummingbirds are the result not of pigments but of ridges in the surface layers of their feathers. By what physical principle do these ridges produce colors?

Q: 27. Which of the equations below regarding colors is correct? O black = cyan + magenta + yellow…

A: We have to answer that which of the equations above regarding colors is correct?

Q: What are the two methods of measuring color intensity?

A: Given: What are the two methods of measuring color intensity?

Q: When sunlight enters the earth's atmosphere, state which color of light is scattered (i) the most…

A: When sunlight enters the earth’s atmosphere, violet colour is scattered the most and red the least…

Q: White light is shone through a cyan filter, what color will the resulting light be? white cyan blue…

A: The white light primarily contains three colors red, green, and blue.

Q: What do the colors of the rainbow have to do with the speed of light in water?

A: The colors of the rainbow have to do with the speed of light in water.

Q: To generate a wide spectrum of colours, colour ink-jet printers use what kind of ink? Do they appear…

A:

Q: Why do soap bubbles show glints of random colors?

A: The white light consists of all the colors and when it falls on soap bubble which can be considered…

Q: What is the advantage of having matte (nonglossy) pages in this book rather than pages with a…

A: Given:  pages in book

Q: A swatch of pure red fabric is viewed through a green filter. The fabric appearsA. Red.        B.…

A: Red is a combination of yellow and magenta. In order to reflect yellow and magenta color, these…

Q: Is a mirage the result of reflection or refraction?

A:

Q: Which color has the highest frequency?   A) Violet B) Red C) Indigo D) Green

A: We know that frequency is inversely proportional to the wavelength.

Q: Which colour results when yellow, cyan and magenta colours are subtracted from a white colour?

A: The secondary colours of light are formed by mixing primary colours which are namely Red, Green and…

Q: in which of these case ripe banana will appear black when illuminated with red, yellow , green and…

A: A color whish appears to us is due to the reflection of light from a particular surface. The process…

Q: If a green filter is placed in front of white light what color or colors are subtracted ? Cyan Black…

A: Answer: Blue and Red

Q: What accounts for different colors in either a soap bubble or a layer of gasoline on water?

A: When white light incident on thin on thin film, then some part of it reflects from the upper layer…

Q: The colored wings of many butterflies are due to pigmentation, but in others, such as the Morpho…

A: The colored wings of morpho-butterflies are due to the iridescence.

Q: Which type of color mixing is used by computer screens?

A: In computer screens, each image pixel emits light. In case of light emitting systems, additive…

Q: By what factor does the wavelength of light change when it passes from air to ice?

A:

Q: Look at your red , sunburned feet when they are under water. Why don’t they look as red as they are…

A: Ray of light coming from red wound will undergo scattering and refraction both at water surface.

Q: What color does red cloth appear to be when illuminated by sunlight?

A: It is known that the white light from the sun is a combination of seven different lights with…

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: The three primary pigment colors are red, blue, and green. a. True b. False

A: The color is made up of white light. There are seven colors in white light but all seven colors are…

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: If you look with a magnifying glass at pictures printed in full color in this or other books or…

A: Given: Some colours

Q: why red and cyan colours are called complimentary colours?

A: A colour which on mixing up with another colour gives white or black colour is called the…

Q: orange-violet-yellow-red-brown and Ω %

A:

Q: Which of the following are complementary colors? A. Yellow and blue B. Red and green

A: The complementary colours are colours that contrast with each other and are positioned exactly…

Q: What is the resulting color of equal intensities of red light and cyan light combined?

A: As we know, red, green and blue colors are primary additive color. Cyan light is generally absorbing…

Q: The process of separating light into its component colors or frequencies is known as ___________.

A: The process of separating light into its component colors or frequencies is known as:

Q: What color light is transmitted through a piece of red glass?

A: When an electromagnetic waves incident on an object that composes all the seven color then all the…

Q: Why does water appear cyan?

A: Water molecule absorbs red light very strongly, so when red light is subtracted from the white light…

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: Why does light bend when it passes thru different materials?

A: According to question: Light bends only in a medium, i.e light bends as a consequence of interacting…

Q: Several raisins are placed in a bowl of water, after 24 hours, why does the water changes color?

A: Raisins swell when they are soaked in water. All of this is due to the osmosis process.

Q: why are red , green and blue called the additive primary colours?

A: Additive primary colours are the primary colour elements that make up white light. These colours are…

Q: When children make bubbles with soap water some of the bubbles initially do not show any colors. But…

A: Question based on bubbles of soap water

Q: Which color has the greater speed in vacuum?

A:

Q: Which has the greatest energy among the color in a rainbow

A: Rainbow has seven colors which are : violet, indigo, blue, green, yellow, orange, red Energy is…

Q: Which of the following actions performed on a rough metal surface significantly increases the…

A: Polishing is a finishing technique that is used to smoothen rough surfaces using an abrasive…

Q: What will be the color of a sheet of paper containing red pigment when yellow light shines on it?…

A: Answer a) Red , b) Black

Q: Which color has the greater speed in glass?

A: The wavelength of violet light is shortest and it bend the most. And the wavelength of red color is…

Q: The minimum value of the refractive index is: zero 1 less than 1 but not…

A: To find the minimum value of the refractive index.

Q: why does the colour of sunset vary from day to day?

A: The colour of sky is actually the result of scattering of light by the micro particles in the…

Q: When dishes are not properly rinsed after washing, different colors are reflected from their…

A: When the dishes are not washed properly, the soap layer is left on the surface of the dishes. The…

Dispersion of White Light

Snell’s law is a formula that gives a relation between the angle of incidence and angle of refraction and is given as: