The graps shows the variation of magnification `m` produced by as convex lens with the image distance `v`. The focal length of the lens isA. `(b)/(c)`B. `(c)/(b)`C. `a`D. `a,(b)/(c)`

The graps shows the variation of magnification `m` produced by as con

1.	The graps shows the variation of magnification `m` produced by as convex lens with the image distance `v`. The focal length of the lens isA. `(b)/(c)`B. `(c)/(b)`C. `a`D. `a,(b)/(c)`
Answer» Correct Answer - D For lens `(1)/(v)-(1)/(u)=(1)/(f)implies(1)/(v)-(1)/(-u)=(1)/(f)` `(v)/(v)+(v)/(u)=(v)/(f)implies(v)/(u)=(v)/(f)-1` `m=(v)/(f)-1impliesu=(1)/(f)x-1` Comparing with `y=Mx+C` Slope `M=(1)/(f)=(b)/(c)impliesf=(c)/(b)`

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The graps shows the variation of magnification `m` produced by as convex lens with the image distance `v`. The focal length of the lens isA. `(b)/(c)`B. `(c)/(b)`C. `a`D. `a,(b)/(c)`

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