Object O stands on the central axis of a spherical or plane mirror. For this sit
ID: 2297408 • Letter: O
Question
Object O stands on the central axis of a spherical or plane mirror. For this situation, each row in the table below refers to the type of mirror, the focal distance f, the radius of curvature r, the object distance p, the image distance i, and the lateral magnification m. (All distances are in centimeters.) It also refers to whether the image is real (R) or virtual (V), inverted (I) or noninverted (N) with respect to O, and on the same (S) side of the mirror as O or on the opposite (O) side. Fill in the table, including missing signs. (Type plane, concave or convex for the type of mirror, infinity for distances, and R, V, I, NI, same or opp as necessary.)
. Type f r p i m R/V I/N S/O (a) concave 20 +10 (b) +10 +1.0 V (c) +20 +30 (d) +60 -0.50 (e) -40 -10 (f) 20 +0.10 (g) convex 40 4.0 (h) +24 0.5 IExplanation / Answer
A) concave mirror, f = - 20cm, r = - 40cm, p = + 10cm, i = - 6.66cm, m = + 0.66, real, inverted, opposite side
b) plane mirror, f = infinity, r = infinity , p = + 10cm, i = - 10cm, m = + 1, virtual, not inverted, opposite side
c) convex mirror, f = +20cm, r = + 40cm, p = + 30cm, i = + 60cm, m = - 2, virtual, not inverted, same side
d) convex mirror, f = + 20cm, r = + 40cm, p = + 60cm, i = + 30cm, m = - 0.5, real, inverted, same side
e) concave mirror, f = - 20cm, r = - 40cm, p = + 20cm, i = - 10cm, m = + 0.5, virtual, not inverted, opposite side
f) convex mirror, f = + 20cm, r = + 40cm, p = + 180cm, i = + 18cm, m = + 0.1, virtual, not inverted, same side
g) convex mirror, f = + 20cm, r = + 40cm, p = + 3.33cm, i = - 4cm, m = + 1.2, virtual, not inverted, opposite side
h) convex mirror, f = + 8cm, r = + 16cm, p = + 24cm, i = + 12cm, m = - 0.5, real, inverted, same side
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