A sharp peak in a X-Ray Diffractogram represents :
Highly Crystalline Structure
Highly Crystalline Structure option is correct.
Bragg diffraction produces a peak only when scattered X-rays from successive lattice planes interfere constructively, i.e. when \(2d\sin\theta = n\lambda\) is satisfied. This requires a large volume of the specimen to be a periodic, long-range-ordered lattice: the more perfect and larger the crystalline domains, the sharper the diffracted line.
Peak width in an XRD pattern is quantified by the Scherrer relation \(D = \dfrac{K\lambda}{\beta\cos\theta}\), where \(\beta\) is the full width at half maximum and \(D\) the average crystallite size. A very narrow, sharp peak therefore corresponds to a large, defect-free crystalline domain — a highly crystalline structure.
Amorphous materials have no long-range order and give only broad diffuse halos; polymers are typically semi-crystalline and produce broad peaks superimposed on an amorphous background; metallic conductors are not defined by peak sharpness. The sharp diffractogram peak is the fingerprint of high crystallinity.
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Important Questions from Mixed Topic (MH-SET)
.................... is a client server application that identifies each host on the internet with a unique user-friendly name.
Every OS has a ................ or .......... which primarily resides in the main memory of the computer to perform some of the basic functions of the OS.
(i) Kernel
(ii) Interface
(iii) Nucleus
(iv) Compiler
Codes:
Which of the following are referred to as low level language?
(i) Machine language
(ii) Assembly language
(iii) High level language
(iv) Natural language
Codes:
Match the following:
List I List II (a) New York Public Library (i) Shelv AR (b) Miami University Augmented Research Group (ii) Smart library (c) Oula University Library (iii) Wolf Walk (d) North Carolina State University (iv) Find the future Codes:
Which part of the QR code represents the encoded data?
