Physics
What do you understand by the term magnification? Write an expression for it for a lens, explaining the meaning of the symbols used.
Related Questions
State the sign convention to measure the distances for a lens.
Write the lens formula explaining the meaning of the symbols used.
Define the term power of a lens. In what unit is it expressed ?
A lens of power +2.5D is kept in contact with another lens of power -2.5D. What will be the power of the combination of the two lenses? How will the combination behave?