Question

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Which scientist proved experimentally that a shadow of the circular object illuminated with coherent light would have a central bright spot?

Which scientist proposed a mathematical solution for the wave nature of light?


Young

Fresnel

Poisson

Arago



Young


Fresnel


Poisson


Arago

Answer 1

Fresnel

Step-by-step explanation:

From Physics textbook p. 526

"Young presented his findings in 1803, but faced opposition from most physicists because they supported Newton's particle model of light. Young's conclusions gained acceptance after 1820, when Jean Fresnel proposed a mathematical solution for the wave nature of light in a competition. One of the judges, Siméon Denis Poisson, showed that if Fresnel was correct, the shadow of a circular object illuminated with coherent light would have a bright spot at its center.This had never been seen. Another judge, Jean Arago, did the investigation and saw the spot. The prediction and observation of the “Poisson Spot” convinced Poisson and Arago and many others of the wave nature of light"

Answer 2

Arago experimentally proved bright spot.

Fresnel is credited for the solution of wave nature of light.

Step-by-step explanation:

It was Poisson who showed that Fresnel's wave model of light and predicted a bright spot in the very center of a circular shadow, which he interpreted as an absurd result. But the credit to prove it experimentally goes to Arago he also gives strong evidence towards the wave theory of light,which are coherent and have a central bright spot.

Later in his honor that spot is also called Arago bright spot.

And the mathematical solution for the wave nature of light is explained by Fresnel and Huygen combined called Huygens-Fresnel principle.

So from the option we will go with Fresnel.

It was Arago who experimentally prove dthe central bright spot.

And Fresnel gives the mathematical solution of wave nature of light.