Chapter 3: Q22E (page 93)

To expose photographic films. photons of light dissociate silver bromide $A g B r$ molecules which requires an energy of $1.2 e V$ . What limit does this impose on the wavelengths that may be recorded by photographic film?

Short Answer

Expert verified

The wavelengths that may be recorded by photographic film is $1.037 \times 10^{- 6} m$

Step by step solution

Step 1:

In specifically, a photon's energy is equal to the radiation frequency multiplied by Planck's constant.

The energy of the photon is given by expression,

$E = H F E = \frac{h c}{π}$

Here, $E$ is the energy of a photo, $h$ is the plank’s constant, $c$ is the speed of light, $λ$ is the wavelength, and $f$ is the frequency.

Calculate the wavelength.

Consider the given data as below.

The energy, $E = 1.2 e V$

Plank’s constant, $h = 6.636 \times 10^{^{- 34}} J \cdot s$

Speed of light, role="math" localid="1657556142389" $c = 3 \times 10^{8} \frac{m}{s}$

To calculate the wavelength rearrange equation (1) as below.

$λ = \frac{h c}{E}$

Substituting the known parameter to calculate the value of wavelength.

$λ = \frac{6.636 \times 10^{- 34} J \cdot s \times 3 \times 10^{8} m / s}{1.2 eV} (\frac{1 eV}{1.6 \times 10^{- 19} J}) = 1.037 \times 10^{- 6} m$

Therefore, the limit for the wavelength is respectively $1.037 \times 10^{- 6} m$

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To expose photographic films. photons of light dissociate silver bromide $A g B r$ molecules which requires an energy of $1.2 e V$ . What limit does this impose on the wavelengths that may be recorded by photographic film?

Short Answer

Step by step solution

Step 1:

Calculate the wavelength.

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To expose photographic films. photons of light dissociate silver bromide AgBrmolecules which requires an energy of 1.2eV . What limit does this impose on the wavelengths that may be recorded by photographic film?

Short Answer

Step by step solution

Step 1:

Calculate the wavelength.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Physics Textbooks

Solid State Physics

Engineering Physics

Dynamics

Fundamentals of Physics

Kinematics Physics

Waves Physics

Study anywhere. Anytime. Across all devices.

To expose photographic films. photons of light dissociate silver bromide $A g B r$ molecules which requires an energy of $1.2 e V$ . What limit does this impose on the wavelengths that may be recorded by photographic film?