Author Question: Ansel places an object 30 cm from a thin, convex lens along the axis. If a real image forms at a ... (Read 205 times)

formula1 · **on:** Jul 28, 2018

Ansel places an object 30 cm from a thin, convex lens along the axis. If a real image forms at a distance of 15 cm from the lens, what is the focal length of the lens?
a. 15 cm
c. 7.5 cm
b. 10 cm
d. 30 cm

Question 2

An ideal gas is confined to a container with adjustable volume. The pressure and mole number are constant. By what factor will volume change if absolute temperature doubles?
a. 4.0
c. 1/2
b. 2.0
d. 1/4