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Focal Length of Concave Lens is the distance between the center of the lens and the focal point, which is the point where parallel rays of light converge after passing through the lens. Check FAQs
fconcave lens=rcurven-1
fconcave lens - Focal Length of Concave Lens?rcurve - Radius?n - Refractive Index?

Focal Length of Concave Lens given Radius Example

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Here is how the Focal Length of Concave Lens given Radius equation looks like with Values.

Here is how the Focal Length of Concave Lens given Radius equation looks like with Units.

Here is how the Focal Length of Concave Lens given Radius equation looks like.

0.2429Edit=0.068Edit1.28Edit-1
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Focal Length of Concave Lens given Radius Solution

Follow our step by step solution on how to calculate Focal Length of Concave Lens given Radius?

FIRST Step Consider the formula
fconcave lens=rcurven-1
Next Step Substitute values of Variables
fconcave lens=0.068m1.28-1
Next Step Prepare to Evaluate
fconcave lens=0.0681.28-1
Next Step Evaluate
fconcave lens=0.242857142857143m
LAST Step Rounding Answer
fconcave lens=0.2429m

Focal Length of Concave Lens given Radius Formula Elements

Variables
Focal Length of Concave Lens
Focal Length of Concave Lens is the distance between the center of the lens and the focal point, which is the point where parallel rays of light converge after passing through the lens.
Symbol: fconcave lens
Measurement: LengthUnit: m
Note: Value can be positive or negative.
Radius
Radius is a radial line from the focus to any point of a curve, used to measure the distance from the center of a circle or sphere to its edge or surface.
Symbol: rcurve
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Refractive Index
Refractive Index is a measure of how much a lens bends light, describing the amount of refraction that occurs when light passes from one medium to another.
Symbol: n
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.

Other Formulas to find Focal Length of Concave Lens

​Go Focal Length of Concave Lens given Image and Object Distance
fconcave lens=uvv+u

Other formulas in Lenses category

​Go Power of Lens
P=1f
​Go Object Distance in Concave Lens
uconcave=vfconcave lensv-fconcave lens
​Go Object Distance in Convex Lens
uconvex=vfconvex lensv-(fconvex lens)
​Go Magnification of Concave Lens
mconcave=vu

How to Evaluate Focal Length of Concave Lens given Radius?

Focal Length of Concave Lens given Radius evaluator uses Focal Length of Concave Lens = Radius/(Refractive Index-1) to evaluate the Focal Length of Concave Lens, Focal Length of Concave Lens given Radius formula is defined as a measure of the distance between the lens's optical center and its focal point, which determines the lens's ability to converge or diverge light, and is a critical parameter in designing optical systems, such as cameras, telescopes, and microscopes. Focal Length of Concave Lens is denoted by fconcave lens symbol.

How to evaluate Focal Length of Concave Lens given Radius using this online evaluator? To use this online evaluator for Focal Length of Concave Lens given Radius, enter Radius (rcurve) & Refractive Index (n) and hit the calculate button.

FAQs on Focal Length of Concave Lens given Radius

What is the formula to find Focal Length of Concave Lens given Radius?
The formula of Focal Length of Concave Lens given Radius is expressed as Focal Length of Concave Lens = Radius/(Refractive Index-1). Here is an example- 0.204204 = 0.068/(1.28-1).
How to calculate Focal Length of Concave Lens given Radius?
With Radius (rcurve) & Refractive Index (n) we can find Focal Length of Concave Lens given Radius using the formula - Focal Length of Concave Lens = Radius/(Refractive Index-1).
What are the other ways to Calculate Focal Length of Concave Lens?
Here are the different ways to Calculate Focal Length of Concave Lens-
  • Focal Length of Concave Lens=(Object Distance*Image Distance)/(Image Distance+Object Distance)OpenImg
Can the Focal Length of Concave Lens given Radius be negative?
Yes, the Focal Length of Concave Lens given Radius, measured in Length can be negative.
Which unit is used to measure Focal Length of Concave Lens given Radius?
Focal Length of Concave Lens given Radius is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Focal Length of Concave Lens given Radius can be measured.
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