Calculate the luminance of the two lights having 1000 lumen of each and have been placed 30m apart from an incandescent?

Q: In the electric effect, the work function of the any metal independent on the light Intensity ylgn…

A: Work function is the energy an electron needs to have in order to leave the surface of the metal. it…

Q: Why is there no transmitted ray beyond a definite angle? Describe the behavior of the ray at this…

A:

Q: What does Huygens-Fresnel principle state?

A:

Q: . True or False: A continuous spectrum consists of ablending of colors. ___________

A: By the experiment carried out by Newton, he observed dispersion of white light when it passes…

Q: From the data shown in the image, the value of Oc is:

A: given θt=300. n0 =1 n1 =1.49 where n0 and n1  are refractive index of media. according to snells…

Q: How can you test how well different surfaces emit radiation?

A: There are many ways to test how well different surfaces emit radiation and even measure them. We…

Q: 1. Calculate the luminance of the two lights having 1000 lumen of each and have been placed 30 m…

A: Given that, Luminous flux of light = 1000 lumen Distance, r = 30 m (from an incandescent) We need to…

Q: A pure red object on a black background seems to disappear when illuminated with pure green light.…

A: In order to explain the given problem, the concept of "true color" of an object is applied. When any…

Q: How can light be absorbed by defects called color centers?

A: Light can be absorbed by defects called color centers. Color centers are certain defects that…

Q: Take two ideal polaroid (t

A: Given: The Two Polaroid with stack of 10 half wave plates inserted between them with the axis…

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: For some cases, it is said that the ray bends away from the normal, is this statement true? If yes…

A: When ray of light goes from one medium to another medium, it bends towards or away from the normal.…

Q: How do fluorescent soap residues make clothing look “brighter and whiter” in outdoor light? Would…

A: Outdoor light is mainly the sunlight coming from the sun. When the fluorescent soap residues expose…

Q: calculate the frequency of light that causes 1s to be transformed to 4p

A:

Q: What is the cause of color? Why do some objects appear blue to the eye while others appear red? Is…

A: When radiation falls on an object it absorbs certain wavelength and reflects certain other…

Q: Discuss the color of the setting Sun as seen from the Moon.

A: Color of sky from moon

Q: Humans eyes are generally sensitive to red, green, and blue light. O True O False

A: Color sensitive cells in human eye are cones. These cones in the eye are most sensitive to red,…

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: Calculate the distance, d, between atoms using X-rays with a wavelength of 1.54 x10-10 m at an…

A:

Q: Which wavelength range does the green line of the mercury lamp belong to: 600- 700 nm, 500-600 nm,…

A: Which wavelength range does the green line of the mercury lamp belong to: 600-700 nm, 500-600 nm, or…

Q: Why does the candle light appears dimmer as you move back?

A: The given problem can resolved using the concept of intensity of light.  Intensity of light (I) can…

Q: m having trouble with the conversions to compute the interatomic spacings d10 and d11 using given…

A: solution: calculate the interspacing of order n = 10 and n = 11, by substituting the values in the…

Q: Name two dangers of visible light?

A: The visible light is a part of electromagnetic radiation. The wavelength range is 400 nm to 700 nm.…

Q: Define Absorption.

A: Absorption is a process of taking one thing into another or the transfer of energy from one thing to…