Pyranose rings are usually most stable when the ring adopts a ________ conformation with the bulkiest ring substituents in ________ positions.

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#Question id: 19463

#Zoology

DIC microscopy is used for visualizing 

1. Minute details

2. Thick objects

3. Thin objects

4. Larger details

Which among the following options is correct?

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#Question id: 19465

#Zoology

In microscopy histological samples are often stained with which basic dye

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#Question id: 23140

#Zoology

What will be the resolution of a compound microscope where numerical aperture given is 1.5 at 240 wavelength of light?

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#Question id: 23141

#Zoology

Resolution of a light microscope is 0.42nm at 300 wavelength of light. If the specimen is viewed under oil what is the refractive index?

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#Question id: 23142

#Zoology

What is the value of numerical aperture of microscope if glycerol is used and sin α= 70^o?

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#Question id: 23143

#Zoology

Which of the following parameters will give the best resolution in microscopy?