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Plot the u-v graph from the following va...

Plot the u-v graph from the following values:
u...250, 200, 150, 120, 100, 80, 70 cm.
v...... 60.9, 65.2, 73.2, 84, 96.5, 127.5, 166.5 cm.
Find out the focal length from the graph.

Text Solution

Verified by Experts

Scale On X-axis 10 small division = 50 cm
On Y-axis : 10 small division = 40 cm

Focal length, `f=(OB+OC)/(4)= (84+120)/(4)=(304)/(4) =76 cm`
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