Explore topic-wise MCQs in Materials Science.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Materials Science knowledge and support exam preparation. Choose a topic below to get started.

1.

K-alpha x-rays have shorter wavelengths than K-beta x-rays?

A. True
B. False
Answer» C.
Discussion
2.

In the powder method of XRD, the intensities of various bright lines are compared to determine the crystal structure. For simple cubic lattice the ratio of intensities at first two maxima are:

A. <sup>1</sup> <sub>2</sub>
B. <sup>3</sup> <sub>4</sub>
C. <sup>1</sup> <sub>2</sub>
D. None of the mentioned
Answer» B. <sup>3</sup> <sub>4</sub>
Discussion
3.

In Bragg s equation [n = 2.d.sin ], is the angle between:

A. specimen surface and incident rays
B. normal to specimen surface and incident rays
C. parallel lattice surfaces d distance apart and incident rays
D. normal to parallel lattice surfaces d distance apart and incident rays
Answer» D. normal to parallel lattice surfaces d distance apart and incident rays
Discussion
4.

Laue s model pictures XRD as reflection from parallel crystalline planes. Reflection is different from refraction as:

A. diffraction occurs throughout the bulk
B. intensity of diffracted beams is less
C. diffraction in crystals occurs only at Bragg s angles
D. all of the mentioned
Answer» E.
Discussion
5.

Minimum interplanar spacing required for Bragg s diffraction is:

A. /4
B. /2
C.
D. 2
Answer» C.
Discussion
6.

Bragg s law is not a sufficient condition for diffraction by crystalline solids.

A. True
B. False
Answer» B. False
Discussion