Angel is experimenting with a diffraction grating of unknown spacing. He is looking to determine the wavelength of the light in the emission spectrum of a gas and finds that a light having a known wavelength of 602.4nm is deflected by 42.1° away from the central maximum in the second order by this grating. Light of the wavelength to be measured is deflected by 45.7° away from the central maximum in the second order. What is the wavelength of this light in nanometers? Please give your answer as a whole number.

Angel is experimenting with a diffraction grating of unknown spacing. He is looking to determine the wavelength of the light in the emission spectrum of a gas and finds that a light having a known wavelength of 602.4nm is deflected by 42.1° away from the central maximum in the second order by this grating. Light of the wavelength to be measured is deflected by 45.7° away from the central maximum in the second order. What is the wavelength of this light in nanometers? Please give your answer as a whole number.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 76P: On a certain crystal, a first-order X-ray diffraction maximum is observed at an angle of 27.1°...

See similar textbooks

Similar questions

The structure of the NaCl crystal forms reflecting planes 0.541 nm apart. What is the smallest angle, measured from these planes, at which X-ray diffraction can be observed, if X-rays of wavelength 0.085 nm are used?
On a certain crystal, a first-order X-ray diffraction maximum is observed at an angle of 27.1° relative to its surface, using an X-ray source of unknown wavelength. Additionally, when illuminated with a different, this time of known wavelength 0.137 nm, a second-order maximum is detected at 37.3°. Determine (a) the spacing between the reflecting planes, and (b) the unknown wavelength.
As a single crystal is rotated in an x-ray spectrometer (Fig. 3.22a), many parallel planes of atoms besides AA and BB produce strong diffracted beams. Two such planes are shown in Figure P3.38. (a) Determine geometrically the interplanar spacings d1 and d2 in terms of d0. (b) Find the angles (with respect to the surface plane AA) of the n = 1, 2, and 3 intensity maxima from planes with spacing d1. Let = 0.626 and d0 = 4.00 . Note that a given crystal structure (for example, cubic) has interplanar spacings with characteristic ratios, which produce characteristic diffraction patterns. In this way, measurement of the angular position of diffracted x-rays may be used to infer the crystal structure. Figure P3.38 Atomic planes in a cubic lattice.
An X-ray scattering experiment is performed on a crystal whose atoms form planes separated by 0.440 nm. Using an X-ray source of wavelength 0.548 nm, what is the angle (with respect to the planes in question) at which the experimenter needs to illuminate the crystal in order to observe a first-order maximum?
X-rays of wavelength 0.103 nm reflects off a crystal and a second-order maximum is recorded at a Bragg angle of 25.5°. What is the spacing between the scattering planes in this crystal?
Two slits each of width 1800 nm and separated by the center-to-center distance of 1200 nm are illuminated by plane waves from a krypton ion laser-emitting at wavelength 461.9 nm. Find the number of interference peaks in the central diffraction peak.
Check Your Understanding If the line spacing of a diffraction grating d is not precisely known, we can use a light source with a well-determined wavelength to measure it. Suppose the first-order constructive fringe of the H emission line of hydrogen (=656.3nm) is measured at 11.36° using a spectrometer with a diffraction grating. What is the line spacing of this grating?
A laser with 589 nm wavelength and a beam diameter of 2 mm is fed through a beam-expander,then aimed from the G.O. Jones building to the Canary Wharf tower at a distance of 2.75 km.What expansion factor is required for the beam-expander in order that the diffraction-limited spotat Canary Wharf tower has a diameter of 30 cm (defined as the diameter of the first dark ring) ?
An electric current through hydrogen gas produces several distinct wavelengths of visible light. What are the wavelengths of the hydrogen spectrum, if they form first-order maxima at angles of 24.2o,25.7o,29.1o,and 41.0o when projected on a diffraction grating having 10,000 lines per centimeter?
When X-rays of wavelength lambada = 0.20nm are re-flected off the face of a crystal, a Bragg maximum is observed at a glancing angle theta= 17.5 degrees of with sufficient intensity that it is judged to be first order.(a)What is the spacing d of the planes that are paral-lel to the face in question? (b)What are the glancing angles of all higher order maxima?
Monochromatic laser light flows through a small slit in a thin aluminum plate and generates a diffraction pattern on a screen 0.620 m from the slit in a huge vacuum chamber. When the aluminum plate is heated to 20.0C, the width of the diffraction pattern's center maximum is 2.75 mm. When the temperature of the plate is increased to 520.0C, what is the change in the breadth of the center maximum? When the temperature is raised, does the breadth of the center diffraction maximum rise or decrease?
The interplanar distance of (101) plane of ZnO crystal is 0.45 nm. If the first-order diffraction maximum is observed at an incidence angle of 36.2°, what is the wavelength of the X-ray scattering from this crystal? And estimate the crystallite size of the ZnO nanomaterial if FWHM of (101) plane is 2.51° (degree to radian Degree x T/180) and k = 0.9.