Author Question: A thin lens has a focal length of 10.00 cm for blue light. If the index of refraction for the lens ... (Read 143 times)

acc299 · **on:** Jul 28, 2018

A thin lens has a focal length of 10.00 cm for blue light. If the index of refraction for the lens material tends to decrease with increasing wavelength, what is the focal length of the lens for red light?
a. more than 10.00 cm
b. It depends on whether the lens is converging or diverging.
c. also 10.00 cm
d. less that 10.00 cm

Question 2

A spherical air bubble originating from a scuba diver at a depth of 30.0 m has a diameter of 1.0 cm. What will the bubble's diameter be when it reaches the surface? (Assume constant temperature.)
a. 0.7 cm
c. 1.4 cm
b. 1.0 cm
d. 1.6 cm