...the quiz is tomorrow!!? A jeweler inspects a watch with a diameter of 3.6 cm by placing it 8.0 cm in front of a concave mirror of 14.0 cm focal length.
(a) Where will the image of the watch appear?
(b) What will be the diameter of the image?
A dentist uses a small mirror of radius 42 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 16 mm from the tooth, what is the magnification of the image?
The convex lens of a copy machine has a focal length of 25.5 cm. A letter to be copied is placed 44.5 cm from the lens.
(a) How far from the lens is the copy paper?
(b) The machine was adjusted to give an enlarged copy of the letter. How much larger will the copy be?
Camera lenses are described in terms of their focal length. A 50.0 mm lens has a focal length of 50.0 mm.
(a) A camera with a 50 mm lens is focused on an object 3.4 m away. Locate the image.
(b) A 1050 mm lens is focused on an object 125 m away. Locate the image.
In order to clearly read a book 22 cm away, a farsighted person needs an image distance of -30 cm from the eye. What focal length is needed for the lens?
THANKS for any help you can give me
(a) Where will the image of the watch appear?
(b) What will be the diameter of the image?
A dentist uses a small mirror of radius 42 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 16 mm from the tooth, what is the magnification of the image?
The convex lens of a copy machine has a focal length of 25.5 cm. A letter to be copied is placed 44.5 cm from the lens.
(a) How far from the lens is the copy paper?
(b) The machine was adjusted to give an enlarged copy of the letter. How much larger will the copy be?
Camera lenses are described in terms of their focal length. A 50.0 mm lens has a focal length of 50.0 mm.
(a) A camera with a 50 mm lens is focused on an object 3.4 m away. Locate the image.
(b) A 1050 mm lens is focused on an object 125 m away. Locate the image.
In order to clearly read a book 22 cm away, a farsighted person needs an image distance of -30 cm from the eye. What focal length is needed for the lens?
THANKS for any help you can give me