2 years ago

The scientist who used a prism to study light was _____.

Physics

2 answers:

Mekhanik [1.2K]2 years ago

8 0

Isaac Newton was the scientist who used a prism light to study

DanielleElmas [232]2 years ago

3 0

The scientist who used a prism to study light was Isaac Newton

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A sodium atom will absorb light with a wavelength near 589 nm if the light is within 10 MHz of the resonant frequency. The atomi

Troyanec [42]

Answer:

i)20369 photons

ii) 40 ps

Explanation:

Momentum of one Sodium atom:

$P=m*v =600m/s*23amu*\frac{1 kg}{6.02*10^{23}amu}\\P=2.29*10^{-23}kgm/s$

In other to stop it, it must absorb the same momentum in photons:

$P=2.29*10^{-23}kgm/s=n_{photons}*\frac{h_{planck}}{\lambda}\\=n*\frac{6.63*10^{-34}}{589*10^{-9}} \\==>n=20369 photons$

Now, for the minimun time, we use the speed of light and the wavelength. For the n photons:

$t=n*T=n*\frac{\lambda}{c} =20369*\frac{589nm}{3*10^{8}m/s}=4*10^{-11} second=40 ps$

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2 years ago

Explain why a schoolbus appears to be yellow.

Dennis_Churaev [7]

I think the answer is B.

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3 years ago

As a stands, her entire weight is momentarily placed on the heels of her high-heeled shoes. Calculate the pressure exerted on th

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Answer:

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Area $A=\pi r^2=3.14\times 0.00578^2=1.049\times 10^{-4}m^2$

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