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MCQ on NMR spectroscopy: Page-2

Boltzmann constant

(A) 2.240 x 10 -24

(B) 1.380 x 10 -23

(C) 6.680 x 10 -27

(D) 4.50 x 10 -35

The local diamagnetic field is due to

(A) Surrounding nuclei

(B) Valence electrons around proton

(C) Both

(D) None

Ringing is

(A) Decreasing series of oscillations before the peak

(B) Decreasing series of oscillations after the peak

(C) Loss of magnetic energy

(D) Loss of peak

Ringing is more in

(A) FT NMR

(B) CW instrument

(C) Both

(D) None of the above

Fourier transformation is the conversion of

(A) Frequency domain to time domain

(B) Time domain to frequency domain

(C) Both

(D) None