Q. Single halo shows characteristics of

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Q. Understanding and making use of information received from light passing through slide is called as

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Q. Each layer of atom shows four spots after diffraction that are

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Q. Using polarized light helps in

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Q. Reflections giving patterns in asbestos and glass occur at angles upto

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Q. If there is no preferred orientation of fibre axis, layers can occur at a series of positions distributed around fibre

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Q. Increased power of synchrotron radiation reduces

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Q. Details of diffraction pattern in three dimensional plane is influenced by whole form of

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Q. Complicated patterns in diffraction helps in retrieving information about

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Q. Example of electromagnetic wave is

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Q. For obtaining information about fine fibers, waves used are

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Q. A diffraction grating of normally spaced lines, illuminated by parallel lines will give set of fringes with maxima of

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Q. For preferred orientation of crystals, pattern is

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Q. Angles subtended by arcs helps in calculation of fibre's

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Q. Limit of resolution is order of magnitude of

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Q. Photograph of glass shows

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Q. Broadening of spots into arcs shows a decrease in degree of

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Q. Restriction on angles at which crystals lie has reduced the

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Q. Wide angle diffraction gives information about the

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Q. Restriction of angles reduces diffraction pattern from circles to

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