Q1. A magnifier has a magnification of 8 times. How far from the lens should an object be placed so that its (virtual) image is at the near-point distance of 25 {rm cm}?
Q2. Two equally charged particles are held 3.3 x 10^ (-3) m apart and then released from rest. The initial acceleration of the first particle is observed to be 6.0 m/s^2 and that of the second to be 9.0 m/s^2. The mass of the first particle is 6.3 x 10^ (-7) kg.
(a) What is the mass of the second particle?
(b) What is the magnitude of the charge of each particle?