The double concave lens in the figure above isfabricated of glass having index o
ID: 1756754 • Letter: T
Question
The double concave lens in the figure above isfabricated of glass having index of refraction n = 1.75.The magnitudes of the radii of curvature of theleft and right surfaces of the lens are |Rl| =22 cm and |Rr| = 17 cm, respectively.
(a) Calculate the power P of the lens in"diopters".
P = -12.7863247863248 diopters
An upright object of height H = 0.7 cm is placed at adistance of 19 cm to the left of the lens.
(b) Calculate the image distance.
s1' = cm
(c) Calculate the image height.
H' = cm
(d) Is the image real or virtual?
Answer as follows: Real Image = 1; Virtual Image = 2.
Image type =
(e) Is the image upright or inverted?
Answer as follows: Upright = 11, Inverted = 22.
Image orientation =
The object is removed and instead converging rays are incomingfrom the left. In the absence of the lens, these rays would form anupright image at a position 6 cm to the right ofthe location of the lens, i.e. a virtualobject.
(f) Calculate the image distance in this case. (Give numericalvalue and proper algebraic sign.)
s2' = cm
(g) Is the image real or virtual?
Answer as follows: Real Image = 1; Virtual Image = 2.
Image type =
(h) Is the image upright or inverted?
Answer as follows: Upright = 11, Inverted = 22.
Image orientation =
(i) Is the image located to the right or left of the lens?
Answer as follows: Right = 111, Left = 222.