A ballet dancer is on stage dressed in a green body suit. How could you light the stage so that the dancer's costume looked black to the audience?     Light it green so that it absorbs the color of the dress.     Light it red because red cancels out the green     Light it any color except fro green, since a green dress reflects green.     Light it with black light, so that it makes it black.

Q: Which one of the following colors of visible light has the highest frequency? Yellow. Red. Green.…

A: The visible light spectrum arranged in the order of increasing frequency is given by…

Q: A student is sitting outside on a sunny day looking at a book with a explaining to her friend how…

A: It is problematic because the idea that “the white light from the sun contains red. green, and blue…

Q: Light is passing through glass which has an index of refraction of 1.5. If the light has a frequency…

A: index of refraction (n) = 1.5Frequency of light (f) = 420.7 THz

Q: Building contractors often install double-glazed windows to prevent thermal energy (heat) from…

A:

Q: Germanium has a refractive index of 4. How fast does light move through this material? c=3x108 m/s

A: Refractive index = speed of light in vacuum / speed of light in medium

Q: A green laser emits a beam of wavelength 532 light nm in the air. The wavenumber k is :  Select one…

A:

Q: Is it possible for light to experience total internal reflection at the boundary between water and…

A:

Q: A pressure sensor inside of a mixing tank is designed to turn red when the pressure inside the tank…

A:

Q: Germanium has a refractive index of 4. How fast does light move through this material? c=3x108 m/s

A: solution is given as

Q: The sky is blue because of   a. polarization.   b. scattering.   c. diffraction.   d.…

A: Scattering of light: It is the phenomenon under which the light rays get deviated from its straight…

Q: Ultraviolet radiation: O is invisible to human eyes. O travels at a speed of 3x10°m/s thrc mediums.…

A:

Q: The light from a flash light is reflected off of the metal of a car door. If the light from the…

A: Explanation The second law of reflection states that the angle of incidence is equal to the angle of…

Q: Solar cells made of silicon (Si) are designed with nonreflecting, thin-film coatings such as silicon…

A: The refractive index of Silicon = 3.5 The refractive index of Silicon oxide SiO= 1.5 The average…

Q: "You are in a room lit only by yellow light. A pillow in that room looks red you. (your eyes red +…

A: Given You are in a yellow light room = A pillow in that room looks red to you. red + green light=…

Q: Which of the following is a TRUE statement about light? Red light travels slower than ultraviolet…

A: From the concept of electromagnetic spectrum

Q: A prism can split light up into its colors because the speed of the different colors of light in…

A:

Q: Why the color be created different by mixing red +green light and  by mixing  red +green paint?…

A: Red and green light make yellow. Red and green paint make brown. This is because of the additive…

Q: A CD or DVD uses a laser to read information from small depressions on a disk. Which of the…

A: Step1: Overview Lasers are used in CD players to read digital information stored on the disk. CDs…

Q: The refractive index of a substance varies with:Question 16 options: Its temperature. The wavelength…

A: The refractive index of a substance is a measure of how much the speed of light (or other waves such…

Q: You are in a room lit only by cyan light. A chair in that room looks blue to you. (Your eyes see red…

A: Given: In the cyan room, the chair looks blue. in the red room, the chair looks red.   also  red +…

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: