Q. During TEM, a vacuum is created inside the _________________________

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Q. Which of the following component of TEM focuses the beam of electrons on the sample?

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Q. Image formation in electron microscope is based on ___________________________

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Q. The biological materials have little intrinsic capability to ____________________

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Q. Glutaraldehyde is a ________________

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Q. Osmium is a ___________________

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Q. In TEM, the tissue is stained by floating on drops of ______________________

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Q. Shadow casting is a technique of visualizing ___________________

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Q. The scanning electron microscope is used to examine _____________

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Q. In the preparation of samples for SEM, the specimens are air-dried by a process of critical-point drying.

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Q. At the critical drying point, there is no surface tension between ________________

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Q. In SEM, the image is formed by the electrons that _________________

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Q. The AFM uses a _______________ to scan the surface of a molecule.

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Q. The identity and chemical properties of an atom are determined by ____________

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Q. Isotopes have the same number of protons.

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Q. Which of the following is radioactive?

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Q. The half life of a radioisotope is _____________

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Q. Which of the following emitted particles consists of two protons?

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Q. A beta particle is equivalent to an electron.

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Q. Liquid scintillation spectrometry is a method of detecting ________________________

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