A concave mirror has focal length 10 cm

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Geometric Optics · Geometric Optics

Problem

A concave mirror has focal length 10 cm. An object is placed 20 cm in front of the mirror. Calculate the image distance. (a)

+6.7\ \text{cm}

(b)

-6.7\ \text{cm}

(c)

-20\ \text{cm}

(d)

+20\ \text{cm}