Distance between screen and source is decreased by 25 %. Then the percentage change in fringe width is (a) 20% (c) 75% (b) (d) 31% 25%

Q: Problem 20:  Consider 642 nm light falling on a single slit of width 19.5 μm. Randomized Variablesλ…

A: Given data The wavelength of the light is given as λ=642 nm. The width of the slit is given as d =…

Q: Consider a single slit that produces its first minimum at 54° for 590 nm light. Randomized…

A: Let w= width of slit

Q: Problem 18:  Consider a single slit that produces its first minimum at 54° for 590 nm light.…

A: For a single slit, we know that  nλ=wsinθ Therefore  w=nλsinθ Where,  w= slit widthλ= wavelenghtn=…

Q: Light of free-space wavelength 20 = 0.75 um is guided by a thin planar film of thickness d=2.5 μm…

A: As per guidelines, the first three sub-parts have been answered. Kindly post the remaining questions…

Q: A grating in a spectrometer has 1200 lines per mm and a width of 5mm. (a) Find the first order…

A: Grating has 1200 lines per mmGrating width = 5mmWavelength of light = 600nm

Q: Three discrete spectral lines occur at angles of 10.3°, 13.6°, and 14.5°, respectively, in the…

A:

Q: (a) At what angle is the first minimum for 550-nm light falling on a single slit of width 1.00 µm ?…

A: In this case, Dsinθ=nλ Here, D is the slit width,θ  is the angle at which minimum is present,  λis…

Q: Three discrete spectral lines occur at angles of 10.2°, 13.8°, and 15.0°, respectively, in the…

A: SOlution: given that Three discrete spectral lines occur at angles of 10.2°, 13.8°, and 15.0° slits…

Q: Problem 4: Consider light that has its third minimum at an angle of 21.2° when it falls on a single…

A: Given data: The angle, θ=21.2° Slit width, d=3.95 μm=3.95×10-6 m  m = 3

Q: Problem 16: Consider a 570 nm light falling on a single slit of width 1.5 μm. Randomized…

A: The relation to obtain mth order destructive interference or mimima for a single slit of width w is…

Q: If the distance of a point on the screen from the two sources is 1.8 x 10 m and 1.23 × 10-5 m and…

A: To find-Number and nature  of fringe=?Given-X1=1.8×10-5 mX2=1.23×10-5 mWavelength (λ)=6000 A0

Q: 3. Consider a step-index silica optical fibre operates at a wavelength of 0.92 µm which core…

A:

Q: Find the equation for slit width 'w' and slit separation 's' from the equation for light intensity…

A: Given: Light Intensity of the  Iθ∝w2sinuusinNvsinv where, u=12kwsinθ v=12kssinθ k=2πλ and λ is the…

Q: A sheet of paper 0.014 cm thick separates two sheets of glass to form an air wedge 16.5 cm long.…

A:

Q: Part (a) Calculate the angle at which this occurs for violet light in degrees. Numeric   : A numeric…

A:

Q: Problem 17:  Suppose a 1.8 μm wide slit produces its first minimum for 410 nm violet light.…

A: Given data: The wavelength of violet λv = 410 nmThe wavelength of red λr = 750 nmWidth of the slit,…