Week 8 Home work Assignment
- A beam of light is emitted in a pool of water from a depth of 62.0cm.
Where must it strike the air-water interface, relative to the spot directly
above it. in order that the light does not exit the water?
- An 80-mm-focal-length lens is used to focus an image on the film of a
camera. The maximum distance allowed between the lens and the film plane is
120mm. (a) How far ahead of the film should the lens be if the object
to be photographed is 10.0m away? (b) 3.0m away? (c) 1.0m away?
(d) What is the closest object this lens could photograph sharply?
- (a) How far from a -50.0mm-focal-length lens must be placed if its
image is to be magnified 2.00 x and be real? (b) What if the image is
to be virtual and magnified 2.00 x?
- Two 27.0-cm-focal-length converging lenses are placed 16.5cm apart. An
object is placed 35.0cm in front of one. Where will the final image formed by
the second lens be located? What is the total magnification?
- An object is placed 100cm from a glass lens (n = 1.56) with one
concave surface of radius 21.0cm and one convex surface of radius 18.5cm.
where is the final image? What is the magnification?