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Diffraction and Diffraction Grating MCQs

Prepare for Diffraction and Diffraction Grating MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

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Topic Notes: Diffraction and Diffraction Grating

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Master Diffraction and Diffraction Grating MCQs for Competitive Exams with our comprehensive, verified question bank. Designed for students and competitive exam aspirants across Pakistan, this study resource provides topic-wise practice questions for CSS, PMS, FPSC, PPSC, SPSC, KPPSC, BPSC, NTS, and university entry tests.

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Aligned with FPSC, PPSC, and CSS syllabus criteria for Diffraction and Diffraction Grating.
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Preparation Guide & Key Focus Areas for Diffraction and Diffraction Grating MCQs

When preparing for Diffraction and Diffraction Grating MCQs (Physics), focus on core definitions, historical timelines, relevant provisions, and commonly tested factual points. Review each question below, test your knowledge against the given options, and inspect the detailed explanation to solidify your understanding.

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11
A grating has 5000 lines per centimeter. Then grating element will be given as:
12
In 1912, Laue suggested that a crystal can serve as a grating for X-ray diffraction.
13
Light is incident normally on a diffraction grating through which the first order diffraction is seen at 32°. The second order diffraction will be seen at
14
In order to produce diffraction in crystals with X-rays, the spacing between the consecutive lines of grating should be of the order of angstroms.
15
When a monochromatic beam of light is passed through a plane transmission grating at normal incidence, the direct image is obtained at D. The diffracted images A and B correspond to first and second order diffraction. What shall happen if the source is replaced by a source of longer wavelength?
16
In a spectrometer experiment, monochromatic light is incident normally on a diffraction grating having 4.5 × 10^5 lines per metre. The second order line is seen at an angle of 30° to the normal. What is the wavelength of the light?
17
A typical diffraction grating has about ____ lines per centimeter.
18
Diffraction pattern of a single slit consists of a central band which is
19
A sheet of transparent material with many fine equally spaced lines ruled parallel on its surface is called
20
How does the spacing between diffraction fringes change in a typical diffraction pattern?