Who was the first to induce nucellar embryony in Citrus microcarpa using a modified White’s medium?

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#Question id: 23141

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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

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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

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

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#Question id: 23145

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A chemical is said to be fluorescent if it absorbs light at one wavelength (excitation) and emits light (fluoresces) at a specific 

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#Question id: 23146

#Zoology

A phenomenon of absorption of light at a certain wavelength and then emission at longer wavelength is known as

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#Question id: 23147

#Zoology

In fluorescence microscopy why the fluorescence occurs at longer wavelength when there shorter   wavelength of light is applied?