Sherllock Homes looks at a fingerprint with a magnifying glass of power + 10 D.What is the maximum magnifiction of the fingerprint?

What is it that forms the basis of DNA fingerprinting?

A man with normal near point (25 cm) reads a book with small print using a magnifying glass: a thin convex lens of focal length 5 cm- What is the maximum and the minimum angular magnification (magnifying power) possible using the above simple microscope?

At what distance should the converging lens of focal length 10 cm be held in order to view the squares distinctly with the maximum possible magnifying power? What is the magnification in this case?

What is principle of DNA fingerprinting.

What is maximum power rating of P-N junction diode?

At what distance should the converging lens of focal length 10 cm be held in order to view the squares distinctly with the maximum possible magnifying power? Is the magnification equal to the magnifying power in this case? Explain.

Find the focal length of a lens of power- 2.0 D.What type of lens this?

A man with normal near point (25 cm) reads a book with small print using a magnifying glass: a thin convex lens of focal length 5 cm- What is the closest and the farthest distance at which he should keep the lens from the page so that he can read the book when viewing through the magnifying glass?