Two towers on top of two hills are 40 km apart. The line joining them passes 50 m above a hill halfway between the towers. What is the longest wavelength of radio waves, which can be sent between the towers without appreciable diffraction effects?

Q: Radio waves from a star, of wavelength 154 m, reach a radio telescope by two separate paths, as…

A:

Q: White light is spread out into its spectral components by a diffraction grating. If the grating has…

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Q: Light of unknown wavelength passes through two slits separated by 0.31 mm. In the resulting…

A: 1. According to the given question,  d= 0.31 mm which is the distance between the two slits. D= 4.9…

Q: a diffraction grating is illuminated by monochromatic light of wavelength 660 nm what is the number…

A: wavelength = 660 nm

Q: A beam of light is diffracted by a slit of width 0.54 mm. The diffraction pattern forms on a wall…

A: slit width (d) = 0.54 mm distance of wall (screen) = DD = 2.05 m distance between the positions of…

Q: A diffraction grating is illuminated simultaneously with red light of wavelength 800 nm and light of…

A: It is given that,

Q: In a Young's double-slit experiment the center of a bright fringe occurs wherever waves from the…

A: Answer: when the the path difference from the two slits to the fringe is an integral number of…

Q: A laser beam with an unknown wavelength is used in a Michelson interferometer. When the movable…

A: Given : A laser of unknown wavelength is used. Distance moved by the movable mirror, ∆b = 29 μm No.…

Q: Two slits are separated by 0.320 mm. A ray of light of 500 nm affects them by making an interference…

A: Given data The distance between the two slits is d = 0.320 mm. The wavelength of the light is λ=500…

Q: A diffraction grating is illuminated simultaneously with red light of wavelength 690 nm and light of…

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Q: A lighting fixture has an intensity of 9000 candelas directly below a fixture. What is the…

A: Illuminance =Intensityheight2

Q: Light of wavelength 650nm travels through two thin slits. The distance between the fringes produced…

A: Given that wavelength of light and distance between fringes and distance between source and screen…

Q: As shown the interference pattern on a screen 1.0 m behind a diffraction grating. The wavelength of…

A:

Q: A diffraction grating has 6.5 x 105 slits /m Find theangular spread in the second-order spectrum…

A: Given: The slits for diffraction grating is s=6.5X105 slits/m. The wavelength of red light is…

Q: A single slit forms a diffraction pattern, Ziyu measures the first minimum at an angle of 40.0⁰ from…

A: Width= 762.3 nm

Q: a turntable laser illuminates a single slit of width 2.0 microns at normal incidence. what laser…

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Q: Coherent light with wavelength 600 nm passes through two very narrow slits, and the interference…

A: The given values are,

Q: You are working with an electrical engineer who wants to send you messages with his microwave…

A: In this question we have to find the location of the first dark fringe on the wall. Please give…

Q: Monochromatic light falls on a screen 1.75 m from two slits separated by 2.10 mm. The first - and…

A: The wavelength of the light falls on a screen from two slits is,

Q: The separation between adjacent maxima in a double-slit interference pattern using monochromatic…

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Q: A laser light is passed through a narrow slit with d =0.174mm and a diffraction pattern is observed…

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Q: What is the distance between three dark fringes when a light with wavelength 20nm shines through a…

A: The distance of any dark fringe is given in terms of wavelength, distance from slits, and distance…

Q: Coherent light with wavelength 800 nm passes through two very narrow slits and the interference…

A: The slit separation is,

Q: A film of soapy water (n = 1.33) on top of a plastic cutting board has a thickness of 206 nm. What…

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Q: two microscope slides touch at one end and are separated at the other end. When light of wavelength…

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Q: In a Young’s double-slit experiment, the slits are separated by 0.28 mm and the screen is placed 1.4…

A:

Q: Calculate the wavelength (in nm) of light that has its seventh minimum at an angle of 60.0° when…

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Q: Electromagnetic wave of unknown wavelength passes through the slit of width a =3.79 µm and the first…

A: Use diffraction condition and put the values this will give Wavelength of the electromagnetic wave.

Q: Two thin slits separated by 0.17 mm are illuminated by a monochromatic plane wave, producing…

A:

Q: You shine a laser on a narrow slit 0.221 mm in width. In the diffraction pattern that appears on a…

A: The general equation for minima in diffraction is given by:asinθ=mλ........(1)Here, m=1, 2,…

Q: If 750-nm and 6500-nm light pass through two slits 0.55 mm apart, how far apart are the second-order…

A: The position of the bright fringe on a screen in a double slit experiment is given by,

Q: A beam of light is diffracted by a slit of width 0.50 mm. The diffraction pattern forms on a wall…

A: Given Information:- Slit width is d=0.50 mm=0.50 mm×1m103 mm=5.0×10-4 m Distance between the slit…

Q: A 3.14-kHz tone is being produced by a speaker with a diameter of 0.220 m. The air temperature…

A: Given:-  The frequency of the speaker is f = 3.14 Khz = 3140 Hz  The diameter d = 0.220 m  The air…

Q: A double-slit arrangement produces interference fringes that have an angular separation of 5.14 ×…

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Q: Monochromatic light strikes a thin film normal to the surface. On either side of the thin film is…

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Q: A beam of light whose wavelength is 650 nanometers passes through a diffraction grating. The…

A: Given data: Wavelength, λ=650 nm=650×10-9 m Separation distance, D=1×10-3 mm=1×10-6m

Q: Radio waves from a star, of wavelength 154 m, reach a radio telescope by two separate paths, as…

A:

Q: In Young's double-slit experiment the center of a bright fringe occurs wherever waves from the slits…

A:

Q: A person makes two long, parallel knife cuts in a piece of cardboard. She then shines coherent light…

A: Distance between two slits: d = 0.200 mm = 2.00 x 10-4 m Distance between slit and screen: D = 5.00…

Q: For destructive interference, the path difference is an odd number of half-wavelengths even number…

A: When two light waves from different coherent sources meet together, then the distribution of energy…

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.