Thursday
April 17, 2014

Homework Help: physics

Posted by Jon on Monday, April 7, 2008 at 8:16pm.

1)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.

(30)(10)/5.0
15

or (30)(5.0)/10
60

I don't know which one

2)What must be the minimum height of a plane mirror so that a boy of height 162 cm can view himself from head to toe?

162 cm

3)A 5.0 cm real object is placed at a distance of 5.0 cm from a concave mirror of focal length 10 cm. Find the size of the image.

20 cm

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