A concave spherical mirror has a radius of curvature of 20.0 cm. Locate the imag
ID: 1375523 • Letter: A
Question
A concave spherical mirror has a radius of curvature of 20.0 cm. Locate the image for each of the following object distances. (Enter 0 for M and the distance if no image is formed.)
(a) do = 40.0 cm
M = ,
di = cm,
and ---Orientation--- in front of the mirror, real, and upright in front of the mirror, real, and inverted behind the mirror, virtual, and upright behind the mirror, virtual, and inverted no image is formed
(b) do = 20.0 cm
M = ,
di = cm,
and ---Orientation--- in front of the mirror, real, and upright in front of the mirror, real, and inverted behind the mirror, virtual, and upright behind the mirror, virtual, and inverted no image is formed
(c) do = 10.0 cm
M = ,
di = cm,
and ---Orientation--- in front of the mirror, real, and upright in front of the mirror, real, and inverted behind the mirror, virtual, and upright behind the mirror, virtual, and inverted no image is formed
Explanation / Answer
R = 20 cm
f = R/2 = 20/2 = +10cm
a) do = 40 cm
1/f = 1/do + 1/di
1/10 = 1/40 + 1/di
di = 13.33 cm
M = -di/do = -13.33/40 = 0.333
image is real, inverted, diminished and infront of the mirror
b) do = 20 cm
1/f = 1/do + 1/di
1/10 = 1/20 + 1/di
di = 20 cm
M = -di/do = -20/20 = +1
image is real, inverted, same size and infront of the mirror
c) do = 10 cm
1/f = 1/do + 1/di
1/10 = 1/10 + 1/di
1/di = 0
di cannot be determined
M = -di/do = cannot be determined
image is not formed
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.