Mirror Equation Video Lessons

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Problem: An object is located a distance do = 7.2 cm in front of a concave mirror with a radius of curvature r =  18.1 cm. a. Write an expression for the image distance, di.b. Numerically, what is the value of image distance, di in centimeters.c. Is this a real or virtual image? 

FREE Expert Solution

Mirror equation:

1do+1di=1f, where do is the object distance, di is the image distance, and f is the focal length.

The focal length is given by:

f=r2, where r is the radius of curvature. 

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Problem Details

An object is located a distance do = 7.2 cm in front of a concave mirror with a radius of curvature r =  18.1 cm. 

a. Write an expression for the image distance, di.

b. Numerically, what is the value of image distance, di in centimeters.

c. Is this a real or virtual image? 

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