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April 18, 2014

Homework Help: physics

Posted by sophie on Monday, April 6, 2009 at 7:03pm.

A 5.0-cm real object is placed at a distance of 30.0 cm from a concave mirror of focal length 10.0 cm. Find the location of the image.
A. 6 cm
B. 10 cm
C. 15 cm
D. 60 cm

Is it B. 10 cm?

Which of the following objects can set fire to a piece of paper in the presence of sunlight?
A. Double concave lens
B. Convex lens
C. Convex mirror
D. Concave lens

Is it B?

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