Tools and Techniques — Important Questions
CBSE · Class 11 · Biotechnology
90 important questions from Tools and Techniques for CBSE Class 11 Biotechnology, with answers. Includes multiple choice and multiple correct questions.
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Important Questions from Tools and Techniques
What does magnification mean in microscopy?
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Increase in retinal image size
Magnification is the ability by which the retinal image size can be increased via a microscope.
What is the formula for magnification of a lens?
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M = f / (f - d)
The magnification of a lens is given by M = f / (f - d), where f is focal length and d is distance of the object from the lens.
How is total magnification of a compound microscope calculated?
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Objective magnification multiplied by eyepiece magnification
Total magnification equals the magnifying power of the objective lens multiplied by that of the eyepiece.
Which eyepiece magnifications are used in a student microscope?
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10x or 15x
A student microscope commonly has eyepieces of 10x or 15x magnification.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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