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when a metallic surface is illuminated with light of wavelength lambda, the stopping potential is x volts. when the same surface is illuminated by light of wavelength 2lambda the stopping potential is x/3 volts. the threshold wavelength of metallic surface is?a)4/3 lambdab)4 lambdac)6 lambdad)8/3 lambda
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when a metallic surface is illuminated with light of wavelength lambda...
Introduction:
The stopping potential in a photoelectric effect experiment depends on the wavelength of light incident on a metallic surface. By studying the relationship between the stopping potential and the wavelength of light, we can determine the threshold wavelength of the metallic surface.

Given:
- When a metallic surface is illuminated with light of wavelength lambda, the stopping potential is x volts.
- When the same surface is illuminated by light of wavelength 2lambda, the stopping potential is x/3 volts.

Relationship between stopping potential and wavelength:
The stopping potential in a photoelectric effect experiment is directly proportional to the frequency of the incident light. The relationship between stopping potential (V) and wavelength (λ) can be described by the equation:

V ∝ f = c/λ

where c is the speed of light.

Analysis:
Let's use the given information to find the relationship between the stopping potential and the wavelength of light.

When the surface is illuminated with light of wavelength lambda, the stopping potential is x volts.
V1 = x

When the surface is illuminated with light of wavelength 2lambda, the stopping potential is x/3 volts.
V2 = x/3

Using the equation V ∝ 1/λ, we can write the relationship between the stopping potential and the wavelength as:
V1/V2 = (λ2/λ1)
x/(x/3) = (2λ)/(λ)
3 = 2λ/λ
3 = 2

Solution:
The given information leads to an inconsistency in the relationship between the stopping potential and the wavelength of light. This suggests that the given information is not consistent with the principles of the photoelectric effect.

Therefore, it is not possible to determine the threshold wavelength of the metallic surface using the given information.
Community Answer
when a metallic surface is illuminated with light of wavelength lambda...
B)4Lambda
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when a metallic surface is illuminated with light of wavelength lambda, the stopping potential is x volts. when the same surface is illuminated by light of wavelength 2lambda the stopping potential is x/3 volts. the threshold wavelength of metallic surface is?a)4/3 lambdab)4 lambdac)6 lambdad)8/3 lambda
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