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In an optics experiment, with the position of the object fixed, a student varies the position of a convex lens and for each position, the screen is adjusted to get a clear image of the object. A graph between the object distance u and the image distance ?, from the lens, is plotted using the same scale for the two axes. A straight line passing through the origin and making an angle of 45° with the x-axis meets the experimental curve at P. The coordinates of P will be :

In an optics experiment, with the position of the object fixed, a student varies the position of a convex lens
and for each position, the screen is adjusted to get a clear image of the object. A graph between the object
distance u and the image distance ?, from the lens, is plotted using the same scale for the two axes. A
straight line passing through the origin and making an angle of 45° with the x-axis meets the experimental
curve at P. The coordinates of P will be :

Grade:11

2 Answers

Arun
25758 Points
2 years ago
For the graph to intersect y=x line,
 
the value of v and u must be equal.
 
u=u ; v=u
 
From lens formula, v1u1=f1
 
u1+u1=f1
 
u=2f  and v=+2f
 
The coordinates are (2f,2f)

 
Vikas TU
14149 Points
2 years ago
(2f,2f) 
(f/2,f/2)
(f,f)
(4f,4f)
Answer a ….................................................................

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