Q. By introducing which of the following, signal-to-noise ratio can be improved?

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Q. Which of the following is adjusted as a fine control for frequency tuning?

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Q. In basic ESR spectrometer, the cavity length is adjustable.

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Q. The cavity resonant frequency should be equal to which of the following?

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Q. When klystron frequency is close to the cavity resonant frequency, much less power is reflected from the cavity to the diode.

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Q. From which of the following are electrons emitted in the klystron tube?

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Q. Which of the following is the operating frequency of the ESR spectrometer?

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Q. At which of the following frequencies is the magnetic field at the sample modulated?

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Q. The output of the klystron does not pass through which of the following?

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Q. Which of the following is used as detector crystal in ESR spectrometer?

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Q. After detection, the resulting signal will have which of the following frequencies?

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Q. Which of the following is the modulation amplitude range of ESR spectrometer?

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Q. In which of the following ranges will the receiver time constant of the ESR spectrometer lie?

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Q. Which of the following is the oscilloscope field width of the ESR spectrometer?

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Q. The magnet used in ESR spectrometer provides a magnetic field which can be varied from ________ to _______

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Q. Which of the following sensor is used in ESR spectrometer?

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Q. Which of the following oscillator is used as 1230 Hz oscillator?

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Q. What does AFC stand for?

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Q. Klystron requires _______ for the klystron beam and up to _____ for the klystron reflector.

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Q. The klystron body is insulated from ground by an insulating gas casket.

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