How far from a page should you hold a lens with a 18.0cm focal length in...
Part A How far from a 30.0 −mm -focal-length lens must an object be placed if its image is to be magnified 3.00 × and be real? Part B What if the image is to be virtual and magnified 3.00×?
Part A How far from a 53.0-mm-focal-length lens must an object be placed if its image is to be magnified 1.50× and be real? Express your answer to three significant figures and include the appropriate units. Part B How far from a 53.0-mm-focal-length lens must an object be placed if its image is to be magnified 1.50× and be virtual? Express your answer to three significant figures and include the appropriate units.
Part A How far from a 47.0-mm-focal-length lens must an object be placed if its image is to be magnified 1.50× and be real? Express your answer to three significant figures and include the appropriate units. Part A How far from a 47.0-mm-focal-length lens must an object be placed if its image is to be magnified 1.50× and be real? Express your answer to three significant figures and include the appropriate units.
How far should an object be from a converging lens of focal length 35.0 cm to form a real image 1/4 its size?
A converging lens has a focal length of 24 cm. How far from the lens should an object be placed to get a real image with a magnification of 2.2 and a virtual image with a magnification of 2.2? a. a real image with a magnification of 2.2 b. a virtual image with a magnification of 2.2
A camera lens has a focal length of 197 mm . How far from the lens should the subject for the photo be if the lens is 20.4 cm from the film? s= (answer in cm)
A converging lens has a focal length of 21 cm. How far from the lens should an object be placed to get a real image with a magnification of 3.4 and a virtual image with a magnification of 3.4? (a) a real image with a magnification of 3.4 cm (b) a virtual Image with a magnification of 3.4 cm
How far from −56.0-mm-focal-length lens must an object be placed if its image is to be magnified 2.50× and be real? Follow the sign conventions. [Hint: Consider real objects and virtual objects (formed by some other piece of optics).]
(TCO 8) The focal length of a lens is 5.00 cm. How far from the lens must an object be placed to produce an image 7.15 cm from the lens?
The condenser lens of a slide projector has a focal length of 25 mm. It produces a twice magnified image of the lamp filament. How far should the projection lens be from the condenser? Ans.: 75 mm