Engineering Sciences
2018 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE XE 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 61–63 of 175. Imported answers require review unless explicitly marked reviewed.
Question 18
Open questionXE-CNAT2 marksNeeds review
When 3 identical non-interacting spin ½ particles are put in an infinite potential well, the ground state energy of the system is 18 meV. If instead, seven particles are put inside the potential well, the new ground state energy is ________ meV.
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Open questionXE-CNAT2 marksNeeds review
If the value of the integral (I) is 4, the value of the constant b is __________ (give answer up to 2 decimal places).
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Open questionXE-CNAT2 marksNeeds review
X-ray diffraction pattern is obtained from FCC polycrystalline aluminum (lattice parameter = 0.405 nm) using Cr-Kα radiation of wavelength 0.229 nm. The maximum number of peaks that can be observed in the pattern is __________.
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