Problem 10: A 2.2-cm-tall object is placed 4.9 cm in front of a convex mirror with radius of curvature 21 cm.

Part (a) What is the image distance, in centimeters? Include its sign.

Problem 11: A laser beam has a velocity in vacuum of c = 3 10⁸ m/s. A student runs an experiment in which a liquid is placed in a tank of length L = 13.8 m. The time it takes for the beam to make it across the tank is timed to be t = 62 ns.

Part (a) Write an expression for the liquid's index of refraction, n.

Part (b) Numerically, what is this index?

Problem 15: Suppose a book is held 6.8 cm from a 10.5-cm focal length lens.

Part (a) Find the magnification of the image of the book.

Part (b) Find the magnification of the lens when the book is held 8.8 cm from the magnifier.

Problem 19:Consider a460nm wavelength blue light falling on a pair of slits separated by0.065mm.

At what angle (in degrees) is the first-order maximum for the blue light?

Problem 21:Consider a570nm light falling on a single slit of width1.1m.

At what angle (in degrees) is the first minimum for the light?

Part B

Problem 4:A certain55Hz AC power line radiates an electromagnetic wave having a maximum electric field strength of13kV/m.

Part (a)What is the wavelength, in meters, of this very low frequency electromagnetic wave?

Part (b)What is its maximum magnetic field strength, in teslas?

Problem 10 :A student notices that the image produced from a large concave mirror of a distant skyscraper of heighthss=116m is inverted and the magnitude of the height is |hii| =1.13m tall. The image is locateddi=181cm in front of the mirror.

Part (a)Write an expression for the distance between the mirror and the skyscraper,d_s.

Part (b)What is the distance between the mirror and the skyscraper in meters?

Part (c)What is the focal length of the mirror, f, in centimeters?