The optical wavelength

Q: Pro blem 9: Consider light passing from air into water. What is the ratio of its wavelength…

A: Write the expression for the refractive index. Here, c is the speed of light and v is the wave…

Q: Define the refractive index.

A: Refractive index: It is defined as the ratio of speed of light in vaccum (c) to the speed of light…

Q: Figure shows 500 nm light as blue and 550 nm light as yellow. Why should we nevertheless not call…

A: It's all due to the color perception. When a person views an opaque colored…

Q: What do you mean by the term Contrast in microscopy?

A: Contrast is basically created when specimen imaging is done. This helps in specifying or making…

Q: what is polar optical phonon potential? what material does it arise?

A:

Q: Which of the following layer is known as absorption layer for short waves O Option 1 O F1 layer O F2…

A: Answer: D layer

Q: Which of the ff. phenomena may occur when electromagnetic radiation interact with molecules? (2 or…

A: Any type of electromagnetic energy can be transformed into thermal energy in interaction with…

Q: must be incident normally on the slit

A: Which of the following conditions must the light satisfy to obtain an observable double silt…

Q: QUESTION 19 When determining Brewster's angle of maximum polarization we use O A. Malus's Law O B.…

A: Given:- law used to determine Brewster's angle of maximum polarization .

Q: of Shell's law, ray Iight is entering to medium from air, sini 1 (a) sinr u sin i (b) = Ll sin r sin…

A: the correct formula of snell's law when ray of light entering to medium from air:given,refractive…

Q: What must be the luminous intensity, in candela, of a spot light mounted on a ceiling of a 3-meter…

A:

Q: Using n = VEr , calculate the refractive index n of the materials below. Compare them with the ones…

A: Given relation to calculate refractive index,

Q: How long would it take light to travel around the earth (d = 8000 miles)? %3D

A: The time required for light to travel around the earth is t = (Earth's circumference)/(velocity of…

Q: Determine the diameter of a paraboloidal reflector required to produce a beam of 15o width at 1.5…

A: Given Data: Beam width, θ=15°=15×π180 Frequency, ν=1.5 GHz=1.5×109 Hz Speed of em waves, c=3×108 m/s

Q: How does refractive index depends on wavelength of light?

A:

Q: What other wavelengths will completely destructively interfere and why?

A: Given,

Q: Atoms have diameters of about 10-8 cm Can visible lightbe used to “see” an atom? Explain

A: No, we cannot see an atom by using visible light.

Q: Which color of visible light would give the best resolution ina microscope? Explain.

A: Answer: Microscope: A microscope is described as a device that can be utilized to view tiny…

Q: The resolving power of a microscope is greatest when theobject being observed is illuminated by(a)…

A: Longer wavelength of light yield less resolution and shorter wavelength yield more resolution. Among…

Q: 3. COMPUTE FOR SPACING BETWEEN LIGHTING UNITS TO PRODUCE AVERAGE LUX STREET WIDTH = 10M MOUNTING…

A: Spacing between lighting units = (Lamp size*coefficient of utilization*Mounting Height)/ (Produce…

Q: Will you please answer the following that can be seen in the images?

A: Given:-           By using gauss law:                   ϕ E→.dA→ = εenclosedε0

Q: 70° ) reflected andle Ihcident angle Normal Barrier

A: To determine,Angle of incidence(i).given,Reflected ray makes an angle of θ=70o

Q: Find out the Brewster angle of light which travels from milk into the air (1.5)

A:

Q: . Each 1.0 mm of a filter through which light passes reduces the intensity of the light by 12%. How…

A: Given: Each 1 mm of filter reduces the light by 12 % We want the intensity to be reduced by 20%

Q: How can the resolving power of microscope is determine?

A: For microscopes, the resolving power is the inverse of the distance between two objects that can be…

Q: Devise straightforward experiments to measure the speed oflight in a given glass using Brewster’s…

A: RI of air = naRI of glass = ngBrewster's angle = θpSpeed of light in vacuum = cSpeed of light in…

Q: How does the refractive index of a medium depend on its temperature?

A: The refractive index of the medium depends on its temperature.

Q: 7. The RI of Core and Cladding of an optical fiber are 1.55 and 1.53 respectively. Calculate its…

A: Given , n1 = 1.55 n2 = 1.53

Q: Find the wavelength of light that has its first minimum at 62.0o .

A: Given data: Angular position is, θ=62∘

Q: core/cladding interface Calculate: The angle of refraction at the air/core interface, 0, critical…

A:

Q: What are the physics principle behind an ophthalmic slit lamp?

A: Ophthalmic slit lamp is an instrument used by ophthalmologists to check the eyes of the patients

Q: What colors of ink do color ink-jet printers use to produce a full range of colors? Do the colors…

A: Colors of ink do color ink-jet printers use to produce a full range of colors are cyan, yellow,…

Q: Newton’s rings are observed in the reflected light of wave length 5900 Å. The diameter of 10th dark…

A:

Q: Light is travelling from ruby to air. Its speed in ruby is 1.7 X10% m/s. Find the critical angle of…

A: Given data nair=1nruby=1.77

Q: What is the difference between the value obtained using E= I/(d2) and E = (# ∙ n ∙ LM ∙ CU ∙ LLF)/A.…

A: Hand wriiten solution is in step-2.

Q: a parallel beam of sodium light is allowed to be incident normally on a plane grating 4250 lines…

A:

Q: Does increasing the frequency of the light source cause the light to be diffracted more or less?…

A: relation between the speed, frequency, wavelength of the light is given by : speed of light =…

Q: 11. Refraction can be occur because of ? * O due to agitation of electrons O water vapor and oxygen…

A:

Q: Lunar astronauts placed a reflector on the Moon’s surface, from which a laser beam is periodically…

A: Accuracy in time,