A plano-convex lens with radius of curvature R = 3.0 m is in contact with a flat plate of glass. A light source and the observer’s eye are both close to the normal, as shown in Figure 24.8a. The radius of the 50th bright Newton’s ring is found to be 9.8 mm. What is the wavelength of the light produced by the source?

Q: A 0.45-mm-diameter (circular) hole is illuminated by light that has a wavelength of 550nm. What is…

A: Given: The diameter of the hole is 0.45 mm. The wavelength of the light is 550 nm. The distance of…

Q: What is the separation between two slits for which 530-nm green light has its first maximum at an…

A:

Q: Your seatmate's glasses appear greenish (500 nm) when white light reflects from it. What is the…

A: Given data: The wavelength of greenish light is λ=500 nm. The refractive index of coating is n=64.

Q: Consider the surface of a soap bubble as a flat thin film with refractive index n=1.28 surrounded by…

A:

Q: A material having an index of refraction of 1.25 is used as an antireflective coating on a piece of…

A: Given data The refractive index of the material is nm = 1.25 The refractive index of the glass is ng…

Q: A plastic lens is coated on the outside with a thin film of graphene to prevent the transmission of…

A: Given that, Refractive index of graphene(µ)= 1.30 Let t be its thickness wavelength,( λ) = 250 nm=…

Q: A thin layer of liquid methylene iodide (n = 1.756) is sandwiched between two flat, parallel plates…

A: Given: n = 1.50 Wavelength λ = 394 × 10-9 m To determine: Thickness of the liquid layer. Formula…

Q: A technician places a fluid substance, with a refractive index of 1.71, between two horizontal panes…

A: Given data as per question refractive index  =   1.71 wavelength =  300nm

Q: A light is incident normally on a thin (n = 1.33) suspended in the air. What is the minimum…

A: Given data as per questionN=1.55λ  = 560 nm

Q: A plano-convex lens rests with its curved side on a flat glass surface and is illuminated from above…

A: Wavelength of light, λ = 464 nm = 464 ×10-9 m Dark spot observed at the center with 19 concentric…

Q: A teacher places a fluid substance, with a refractive index of 1.71, between two horizontal panes of…

A: Given data: The refractive index μ=1.71 The monochromatic light λ=650 nm

Q: A lens with an index of refraction of n2 = 1.60 is to be coated with a film of material (n, = 1.40)…

A:

Q: A thin film of glass (n = 1.52) of thickness 0.396 ?m is viewed under white light at near normal…

A:

Q: Laser light of wavelength 460 nmnm is traveling in air and shines at normal incidence onto the flat…

A:

Q: A thin layer of oil (n = 1.25) is floating on water (n = 1.33). What is the minimum nonzero…

A: λ = 530 nm n of oil = 1.25 n of water = 1.33

Q: A soap film is held vertically in air and is viewed in reflected light as in Figure CQ24.14. Explain…

A:

Q: A light beam in air with wavelength mu= 500 nm goes into glass which has an index of refraction =…

A: We know,

Q: A 130 nm130 nm thick anti‑reflective film, with an index of refraction of 1.37,1.37, is placed on…

A:

Q: For a 560-nm light, calculate the critical angle for the material of the refractive index 1.55…

A:

Q: To keep unwanted light from reflecting from the surface of eyeglasses or other lenses, a thin film…

A: The wavelength of the film can be obtained as

Q: A camera lens with index of refraction greater than 1.30 is coated with a thin transparent film of…

A: The camera lens has index of refraction greater than 1.30. The reflected light from upper and lower…

Q: A 500-nm-wavelength beam of light illuminates a soap film with air on both sides and an index of…

A: In this question, the wavelength of light and refractive index of film is given. To calculate…

Q: A distant point source of light (like a star) emits light of wavelength 575 nm. When this light…

A: r=Radius of diffraction pattern=0.0112 mmλ=Wavelength=575 nmf=Focal length of lens=135 mmd=Diameter…

Q: An oil slick on water is 144 nm thick and illuminated by light of all wavelengths incident at a 30°…

A: As we know condition for constructive interference is,  2t  = λn2,3λn2,5λn2,....  where t is…

Q: A material having an index of refraction of 1.20 is used as an antireflective coating on a piece of…

A: Given data: n1=1.2n=1.5λ=410 nm Need to determine the minimum thickness of the film thickness.

Q: An extremely thin sheet of glass is being inspected at the camera store. Illuminated by white light…

A: Refractive index (n) = 1.52 Thickness (t) = 0.415 × 10-6 m Order (m)=1 Now ,   2 n t = m ×…

Q: A film of soapy water (n = 1.33) on top of a sheet of flint glass (n = 1.66) has a thickness of 232…

A: given: nsw=1.33ng=1.66t=232 nm

Q: A technician places a fluid substance, with a refractive index of 1.75, between two horizontal panes…

A: Answer Given n= refractive index =1.75 m= order = 1 λ=wavelength = 550nm We have the formula 2nt =…

Q: An extremely thin sheet of glass is being inspected at the factory. Illuminated by white light at…

A:

Q: White light is incident at near normal on a thin film of thickness 542 nm and index of refraction n…

A:

Q: A light is incident normally on a thin (n = 1.33) suspended in the air. What is the second minimum…

A: The combined effect of two or more waves intersecting at a point, is know as interference. It can…

Q: The lens of a camera has a thin film coating designed to enhance the ability of the lens to absorb…

A:

Q: An extremely thin sheet of glass is being inspected at the laboratory. Illuminated by white light at…

A:

Q: Interference effects are produced at point P on a screen as a result of direct rays from a 500-nm…

A:

Q: A material having an index of refraction of 1.35 is used as an antireflective coating on a piece of…

A: a) It is given that μ=1.35λ=590 nm

Q: A thin film of glycerin (n = 1.473) of thickness 475 nm with air on both sides is illuminated with…

A:

Q: A thin film of glass (n = 1.66) of thickness 0.365 µm is viewed under white light at near normal…

A: Given that, Refractive index of the film of glass is n = 1.66 Thickness of the fim is t = 0.365 μm…

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.