Q68 · CSIR NET Chemistry, June 2016
Paper: CSIR NET June 2016 · Subject: Physical Chemistry · Chapter: Molecular Spectroscopy · Topic: NMR ESR Physical · Marks: 2 · Difficulty: Medium
In an NMR spectrometer containing a 2.5 T magnet, Larmor precession frequency of ${}^{1}\mathrm{H}$ is 100 MHz. The radiofrequency used in this spectrometer has an associated magnetic field strength of $2.5 \times 10^{-4}$ T. The duration of a 90° pulse in this instrument is
(a)$25 \times 10^{-6}\ \mathrm{s}$
(b)$50 \times 10^{-6}\ \mathrm{s}$
(c)$25 \times 10^{-5}\ \mathrm{s}$
(d)$50 \times 10^{-5}\ \mathrm{s}$
Answer
Answer (as printed): A
Explanation
No explanation was printed for this question.
Study loop for Molecular Spectroscopy