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Intensity of Light in Photo Electric Effect Formula

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Intensity of light is a measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle. Check FAQs

I = \frac{n p}{A \cdot T photoelectric}

I - Intensity of light?n_p - Number of Photons?A - Area?T_{photoelectric} - Time for Photoelectric Effect?

Intensity of Light in Photo Electric Effect Example

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Here is how the Intensity of Light in Photo Electric Effect equation looks like with Values.

Here is how the Intensity of Light in Photo Electric Effect equation looks like with Units.

Here is how the Intensity of Light in Photo Electric Effect equation looks like.

1.1E-8 = \frac{90}{50 \cdot 5}

1.1E-8cd = \frac{90}{50m² \cdot 5Year}

1.1E-8 = \frac{90}{50 \cdot 5}

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Intensity of Light in Photo Electric Effect Solution

Follow our step by step solution on how to calculate Intensity of Light in Photo Electric Effect?

FIRST Step Consider the formula

I = \frac{n p}{A \cdot T photoelectric}

Next Step Substitute values of Variables

∴

I = \frac{90}{50m² \cdot 5Year}

Next Step Convert Units

∴

I = \frac{90}{50m² \cdot 1.6E+8s}

Next Step Prepare to Evaluate

∴

I = \frac{90}{50 \cdot 1.6E+8}

Next Step Evaluate

∴

I = 1.14079458624521E-08cd

LAST Step Rounding Answer

∴

I = 1.1E-8cd

Intensity of Light in Photo Electric Effect Formula Elements

Variables

Intensity of light

Intensity of light is a measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle.

Symbol: I

Measurement: Luminous IntensityUnit: cd

Note: Value can be positive or negative.

Formulas to find Intensity of light

Number of Photons

The Number of Photons is the total massless photons that move with the speed of light in vacuum.

Symbol: n_p

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Number of Photons

Area

The area is the amount of two-dimensional space taken up by an object.

Symbol: A

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Area

Time for Photoelectric Effect

Time for Photoelectric Effect is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, into the future.

Symbol: T_{photoelectric}

Measurement: TimeUnit: Year

Note: Value should be greater than 0.

Formulas to find Time for Photoelectric Effect

Other formulas in Photo Electric Effect category

Go Kinetic Energy of Photoelectrons

KE photon = [hP] \cdot (ν photon - v 0)

Go Energy of Photon in Photo Electric Effect

E photon_EEF = W + KE

Go Threshold Energy given Energy of Photon

W = E photon - KE

Go Threshold Frequency given Threshold Energy

v 0 = \frac{W}{[hP]}

How to Evaluate Intensity of Light in Photo Electric Effect?

Intensity of Light in Photo Electric Effect evaluator uses Intensity of light = Number of Photons/(Area*Time for Photoelectric Effect) to evaluate the Intensity of light, The Intensity of light in photo electric effect is the number of photons falling on a unit area in unit time. Intensity of light is denoted by I symbol.

How to evaluate Intensity of Light in Photo Electric Effect using this online evaluator? To use this online evaluator for Intensity of Light in Photo Electric Effect, enter Number of Photons (n_p), Area (A) & Time for Photoelectric Effect (T_{photoelectric}) and hit the calculate button.

FAQs on Intensity of Light in Photo Electric Effect

What is the formula to find Intensity of Light in Photo Electric Effect?

The formula of Intensity of Light in Photo Electric Effect is expressed as Intensity of light = Number of Photons/(Area*Time for Photoelectric Effect). Here is an example- 1.1E-8 = 90/(50*157784760).

How to calculate Intensity of Light in Photo Electric Effect?

With Number of Photons (n_p), Area (A) & Time for Photoelectric Effect (T_{photoelectric}) we can find Intensity of Light in Photo Electric Effect using the formula - Intensity of light = Number of Photons/(Area*Time for Photoelectric Effect).

Can the Intensity of Light in Photo Electric Effect be negative?

Yes, the Intensity of Light in Photo Electric Effect, measured in Luminous Intensity can be negative.

Which unit is used to measure Intensity of Light in Photo Electric Effect?

Intensity of Light in Photo Electric Effect is usually measured using the Candela[cd] for Luminous Intensity. Candle (International)[cd], Decimal Candle[cd], Hefner Candle[cd] are the few other units in which Intensity of Light in Photo Electric Effect can be measured.

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