A convex lens has a focal length of 25.5 cm. If an object is placed 72.5 cm from the lens, the image's distance from the lens will be Question 14 options:

33.5 cm

39.3 cm

none of the above.

31.7 cm

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.