All simple lenses have chromatic aberration. Infer why you do not see this effect when you look through a microscope which has two convex lenses.

Determine the maximum r-value of the polar equation r =3+3 cos 0

Hydrogen and helium are both members of?

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b. b. at twice the distance, the magnitude of the field is 2b. c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.