Question

Palladium or gold salts are used in the staining section for

• A. Superior optical microscope.
• B. Electron microscope.
• C. Ultraviolet microscope.
• D. Interference microscope.

Answer 1

The correct option is B Electron microscope.

Staining is a technique used in microscopy which involves the use of stains or dyes to enhance the contrast of microscopic images. it is used in biology and medicine in viewing the tissues and cells under different kinds of the microscope.

The microscope is the instrument which is used to see objects which are difficult to see through the naked eye. it involves the combination of the lens. The light microscope is the simplest microscope with the advancement in technology, different sophisticated microscopes have been evolved like

1. superior optical microscope:- fluorescent dyes are used along with iodine in the optical microscope osmium salts are also used.

2. electron microscope:- the salts of heavy metals like uranium and lead are used in electron microscopy in SE or scanning electron microscopes gold or palladium salts are used for staining.

3.ultravoilet microscope:- the UV light is used instead of normal light it used fluorescent dyes for staining.

4.inteference microscope:- it involves the use of fluorescent dye.

Hence the correct answer is (B)