a broad beam of light of wavelength 683 nm is sent directly downward through the top plate of a pair of glass plates. The plates are 120 mm long, touch at the left end, and are separated by 48.0 mm at the right end.The air between the plates acts as a thin film. How many bright fringes will be seen by an observer looking down through the top plate?

Q: Light of wavelength 500 nm is incident perpendicularly from air on a film 10-4 cm thick and of…

A: (a)Use the relation between wavelength and refractive index to calculate the number of wavelengths.…

Q: Light with a wavelength of λ = 678 nm is incident on a single slit of width w = 4.75 micrometers. A…

A:

Q: Light of wavelength 515 nm passes through a slit 6.60 × 10-6 m wide and falls on a screen that is…

A: Wavelength of the light,  Width of the slit,  Distance of the screen,  Order of the dark fringe,

Q: When red (660 nm) light is shone through a double slit the angle of the first dark fringe in the…

A: Given that Wavelength of incident light λ = 660 nm Angular position of first dark fringe  θ1 = 4.2…

Q: A light source simultaneously emits light of two wavelengths, 460 nm and 654 nm, respectively. The…

A:

Q: What is the minimum thickness of a soap bubble film with refractive index 1.30 that results in a…

A:

Q: 615 nm light is incident on a single slit that is 0.25 mm in width.  The observing screen is 3 m…

A: Wavelength of incidence light = 615 nm = 615 x 10-9 m Slit width, d=0.25 mm = 0.25 x 10-3 m…

Q: A 750 nm red light is not reflected in air by a thin film deposited on glass. If the thickness of…

A:

Q: a broad beam of light of wavelength 620 nm is sent directly downward through the top plate of a pair…

A: a)  The change in spacing is, Thus, the required change in rate is,

Q: A flat piece of glass is held stationary and horizontal above the highly polished, flat top end of a…

A:

Q: A pinhole camera has a small circular aperture of diameter D. Light from distant objects passes…

A:

Q: Light from a laser is passing through a double slit. With the slits 0.150 mm apart and a screen at…

A:

Q: ht is λ = 4250 Å. θ1 and θ2 are the angles to the first and second bright fringes above the center…

A:

Q: Light waves with two different wavelengths, 632 nm and 474 nm, pass simultaneously through a single…

A:

Q: In the figure, a broad beam of light of wavelength 525 nm is sent directly downward through the top…

A:

Q: Light with a wavelength of 600 nm falls on a thin soap film. The angle of incidence is 30°. In the…

A: Given:  The wavelength of light is 600 nm The incidence angle is 300 The adjacent band distance is 4…

Q: A yellow light with a wavelength of 595 nm is made to pass through two slits that are 4.2 E−3 m…

A:

Q: A flat piece of glass is held stationary and horizontal above the highly polished, flat top end of a…

A: Given,  Length of the rod L=8.5 cm  wavelength λ=530 nm ∆T=21.5°C

Q: Light of wavelength 516 nm passes through a slit 7.00 x 10-6 m wide and falls on a screen that is…

A:

Q: A uniform film of oil (n = 1.31) is floating on water. When sunlight in air is incident normally on…

A: In case of thin film interface, for oil floating on the water, Condition for brightness or…

Q: A sheet of metal has a large number of slits, each 5.0 mm wide and 20 cm apart. It is used as a…

A:

Q: In one arm of a Michelson interferometer is a transparent container initially full of air, with…

A: Length d=6.76 cm, number of bright fringes m=105986, wavelength of the light λ=554 nm and refractive…

Q: In the figure, a broad beam of light of wavelength 638 nm is sent directly downward through the top…

A: The bright and dark pattern is created when two waves interfere with each other this is called…

Q: A double slit is illuminated simultaneously with light of wavelength 640 nmnm and light of an…

A:

Q: A thin film of glycerin (n = 1.473) of thickness 525 nm with air on both sides is illuminated with…

A: Given data: n = 1.473 Thickness (t) = 525 nm Need to determine the wavelength is illuminated near to…

Q: A double slit is illuminated simultaneously with orange light of wavelength 620 nm and light of an…

A:

Q: A thin film of soap with n = 1.40 hanging in the air reflects dominantly red light with λ = 664 nm.…

A:

Q: Light waves with two different wavelengths, 642 nm and 474 nm, pass simultaneously through a single…

A:

Q: Light of wavelength 632 nm passes through a slit 7.00 × 106 m wide and falls on a screen that is…

A:

Q: Red light having a wavelength of 690 nm (in air) is vertically incident on a thin film of oil that…

A:

Q: One of the round faces of a solid 3.25 m cylindrical plastic tube is covered with a thin black…

A: In this question we have to find the index of refraction of the plastic.

Q: Two plane rectangular pieces of glass are in contact at one edge and are separated at the other end…

A:

Q: A laser beam is incident on two slits with separation d = 0.026 mm. A screen is placed L = 3.2 m…

A: So the given situation is as follows:

Q: Two slits separated by 2.00 × 10-³ m are illuminated by light of wavelength 625 nm. If the screen is…

A:

Q: Light of wavelength 628 nm passes through a slit 6.40 × 10-6 m wide and falls on a screen that is…

A:

Q: A broad beam of light of wavelength 527 nm is sent directly downward through the glass plate (n =…

A: GivenA broad beam of light of wavelength 527 nm is sent directly downward through the glass plate…

Q: A sheet of glass of refractive index 1.50 is coated with a 400 nm-thick layer of oil of index 1.36.…

A: Given, Refractive index of glass sheet nglass = 1.50  Thickness of oil layer t = 400 nm Refractive…

Q: A broad beam of light of wavelength 600 nm is sent directly downward through the glass plate (n =…

A: given,  λ=600 nm=600×10-9 mng=1.41np=1.24 a. The thickness of wedge in the right end is t=mλ2seven…

Q: An optical engineer needs to ensure that the bright fringes from a double-slit are 15.7 mm apart on…

A: The wavelength of light λ = 633 nm =633×10-9 m.The distance between the bright fringes (y) = 15.7 mm…

Q: The distance between two slits is 1.50 × 10 -5 m. A beam of coherent light of wavelength 600 nm…

A: Distance between slits (d) = 1.50 × 10 -5 m  Wavelength of light (λ) = 600 nm    Distance between…

Diffraction of light

In physics, the term diffraction is defined as the bending of light around the corners of the obstacle. As a light ray passes by an aperture, it bends around the edges or through slits, it spreads out through a narrow opening. The diffracted light will produce fringes of bright and dark or colored bands which are labeled as a diffraction pattern.