Light from a star is spread to cover 1000 slits of grating whose distance from slit to slit is 2 micrometers. Over what range of angles will the visible first-order (n = 1) spectrum from 400 nm to 750 nm be spread?

Problem 1: In a double slit experiment the first minimum for 415 nm violet light is at an angle of 42°. Randomized Variables 2 = 415 nm e = 42 ° Find the distance between the two slits in micrometers. d= 8 9 5 6 sin() cos() tan() 7 HOME cotan() asin() acos() E A 4 atan() acotan() sinh() 1 2 3 cosh() tanh() cotanh() END O Degrees O Radians Vol BACKSPACE DEL CLEAR +

A blackbody radiator in the shape of a sphere has a surface area of 152 If it has a temperature of 1200 K how much energy does it emit per second? If the sun emits light with a peak wavelength of 500 nm. What is the temperature of the sun? Two slits, 0.5 mm apart, are placed at a distance of 1.5 meters from a screen. Light of 300 nm illuminates the two slits and an interference pattern is observed on the screen.  What is the distance between the central bright spot and the first bright spot on either side?

Three discrete spectral lines occur at angles of 10.5°, 13.6°, and 14.7°, respectively, in the first-order spectrum of a diffraction grating spectrometer. (a) If the grating has 3770 slits/cm, what are the wavelengths of the light? ?1 =  nm (10.5°) ?2 =  nm (13.6°) ?3 =  nm (14.7°) (b) At what angles are these lines found in the second-order spectra? ? =  ° (?1) ? =  ° (?2) ? =  ° (?3)

Problem 17:  Suppose a 1.8 μm wide slit produces its first minimum for 410 nm violet light.Randomized Variablesλv = 410 nmλr = 750 nmw = 1.8 μm     Part (a) Calculate the angle at which this occurs for violet light in degrees.Numeric   : A numeric value is expected and not an expression.θv = __________________________________________Part (b) Where is the first minimum (in degrees) for 750 nm red light?Numeric   : A numeric value is expected and not an expression.θr = __________________________________________