Question 4 2 pts In what way does the diagram below explain how a magnifying gla

Question

Question 4 2 pts In what way does the diagram below explain how a magnifying glass works? 25 cm O The lens makes the object (black arrow) much brighter so that it casts a much more defined image on the retina (blue arrow) O The lens creates an image (black arrow) of the object (blue arrow) that is much closer to the eye than the near point (25 cm). That means that the object takes up a larger angle on the retina than if it were at the near point O Under ordinary circumstances, the eye cannot see anything closer than the near point (represented by the blue arrow). However, the lens creates a real image (green arrow) of the object (black arrow) directly on the retina so the eye can resolve a very close object O By allowing you to move the object (black arrow) being magnified within the near point (25 cm) but focus on a virtual image (blue arrow) that is further away, the image created by your crystalline lens (green arrow) takes up a larger angle on your retina than if the object were at the near point O The magnifier creates a real image (green arrow) of the object (black arrow) on the retina This appears to the eye as if it were a very large object (blue arrow) at the near point (25 cm

Explanation / Answer

The option is (d), the last option. Because magnifying power is given by

m = angle subtended by image/angle subtended by object

Increase in angle subtended by image means increase of magnifying power.

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