Physics
Where is the object placed with respect to the principal focus of a magnifying glass, so as to see its enlarged image? Where is the image obtained?
Related Questions
A boy has two lenses A and B. When lens A is kept near a printed page, letters appear magnified. When lens B is used to see a distant object, an upright image is seen. The lenses A and B are :
- both are convex
- both are concave
- A ⟶ concave, B ⟶ convex
- A ⟶ convex, B ⟶ concave
What is magnifying glass? State its two uses.
Write an expression for the magnifying power of a simple microscope. How can it be increased?
State two applications each of a convex lens and a concave lens.