# Physics

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(a) A 2.20 cm high insect is 1.24 m from a 135 mm focal-length lens. What is the image distance?
mm
How high is the image?
cm What type is it? (Select all that apply.)
The image is upright.
The image is inverted.
The image is behind the lens.
The image is in front of the lens.
The image is virtual.
The image is real.

(b) What if f = -135 mm? What is the image distance?
mm
How high is the image?
cm What type is it?
The image is behind the lens.
The image is real.
The image is virtual.
The image is upright.
The image is inverted.
The image is in front of the lens.

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