FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Focal Length using Distance Formula Formula

Fx Copy

LaTeX Copy

Focal Length of Lens is the distance between the lens's optical center and the image sensor, determining the lens's angle of view and the magnification of the image. Check FAQs

f = \frac{f 1 + f 2 - w}{f 1 \cdot f 2}

f - Focal Length of Lens?f₁ - Focal Length 1?f₂ - Focal Length 2?w - Width of Lens?

Focal Length using Distance Formula Example

With values

With units

Only example

Here is how the Focal Length using Distance Formula equation looks like with Values.

Here is how the Focal Length using Distance Formula equation looks like with Units.

Here is how the Focal Length using Distance Formula equation looks like.

2.2396 = \frac{0.4 + 0.48 - 0.45}{0.4 \cdot 0.48}

2.2396m = \frac{0.4m + 0.48m - 0.45m}{0.4m \cdot 0.48m}

2.2396 = \frac{0.4 + 0.48 - 0.45}{0.4 \cdot 0.48}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Physics » Category

Basic Physics » Category

Optics and Waves » fx Focal Length using Distance Formula

Focal Length using Distance Formula Solution

Follow our step by step solution on how to calculate Focal Length using Distance Formula?

FIRST Step Consider the formula

f = \frac{f 1 + f 2 - w}{f 1 \cdot f 2}

Next Step Substitute values of Variables

∴

f = \frac{0.4m + 0.48m - 0.45m}{0.4m \cdot 0.48m}

Next Step Prepare to Evaluate

∴

f = \frac{0.4 + 0.48 - 0.45}{0.4 \cdot 0.48}

Next Step Evaluate

∴

f = 2.23958333333333m

LAST Step Rounding Answer

∴

f = 2.2396m

Focal Length using Distance Formula Formula Elements

Variables

Focal Length of Lens

Focal Length of Lens is the distance between the lens's optical center and the image sensor, determining the lens's angle of view and the magnification of the image.

Symbol: f

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Focal Length of Lens

Focal Length 1

Focal Length 1 is the distance between the center of a lens and its focal point, which is the point where parallel light rays converge, used to calculate the magnification of an object.

Symbol: f₁

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Focal Length 1

Focal Length 2

Focal Length 2 is the distance between the vertex of a lens and its focal point, which is the point where parallel rays of light converge after passing through the lens.

Symbol: f₂

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Focal Length 2

Width of Lens

Width of Lens is the horizontal distance of a lens, which is a curved piece of glass or plastic used in optical instruments, such as cameras, telescopes, and microscopes, to focus light.

Symbol: w

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Width of Lens

Other formulas in Lenses category

Go Power of Lens

P = \frac{1}{f}

Go Object Distance in Concave Lens

u concave = \frac{v \cdot f concave lens}{v - f concave lens}

Go Object Distance in Convex Lens

u convex = \frac{v \cdot f convex lens}{v - (f convex lens)}

Go Magnification of Concave Lens

m concave = \frac{v}{u}

How to Evaluate Focal Length using Distance Formula?

Focal Length using Distance Formula evaluator uses Focal Length of Lens = (Focal Length 1+Focal Length 2-Width of Lens)/(Focal Length 1*Focal Length 2) to evaluate the Focal Length of Lens, Focal Length using Distance Formula is defined as a method to determine the focal length of a lens in an optical system, considering the distance between the object and the image, and the magnification power of the lens, providing an essential parameter for optical design and imaging applications. Focal Length of Lens is denoted by f symbol.

How to evaluate Focal Length using Distance Formula using this online evaluator? To use this online evaluator for Focal Length using Distance Formula, enter Focal Length 1 (f₁), Focal Length 2 (f₂) & Width of Lens (w) and hit the calculate button.

FAQs on Focal Length using Distance Formula

What is the formula to find Focal Length using Distance Formula?

The formula of Focal Length using Distance Formula is expressed as Focal Length of Lens = (Focal Length 1+Focal Length 2-Width of Lens)/(Focal Length 1*Focal Length 2). Here is an example- 2.239583 = (0.4+0.48-0.45)/(0.4*0.48).

How to calculate Focal Length using Distance Formula?

With Focal Length 1 (f₁), Focal Length 2 (f₂) & Width of Lens (w) we can find Focal Length using Distance Formula using the formula - Focal Length of Lens = (Focal Length 1+Focal Length 2-Width of Lens)/(Focal Length 1*Focal Length 2).

Can the Focal Length using Distance Formula be negative?

No, the Focal Length using Distance Formula, measured in Length cannot be negative.

Which unit is used to measure Focal Length using Distance Formula?

Focal Length using Distance Formula is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Focal Length using Distance Formula can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Focal Length using Distance Formula Formula

Focal Length using Distance Formula Example

Focal Length using Distance Formula Solution

Focal Length using Distance Formula Formula Elements

Other formulas in Lenses category

How to Evaluate Focal Length using Distance Formula?

FAQs on Focal Length using Distance Formula

Variable Name