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IceJOKER [234]
2 years ago
11

In his explanation of the threshold frequency in the photoelectric field, Einstein reasoned that the absorbed photon must have t

he minimum energy required to dislodge an electron from the metal surface. This energy is called the work function (φ) of that metal. What is the longest wavelength of radiation (in nm) that could cause the photoelectric effect in W, where φ = 4.30 × 10−19 J?
Physics
1 answer:
Doss [256]2 years ago
5 0

Answer:

4.6×10^-7 m or 0.46nm

Explanation:

From

Wo= hc/λ

Where:

Wo= work function of the metal

h= planks constant

c= speed of light

λ= wavelength

λ= hc/Wo

λ= 6.6×10^-34 × 3×10^8/4.30×10^-19

λ= 4.6×10^-7 m

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BARSIC [14]

Answer:

39.40 MeV

Explanation:

<u>Determine the minimum possible Kinetic energy </u>

width of region = 5 fm

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when we apply this values using the relativistic energy-momentum relation

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Also in a nuclear confinement ( E, P >> mc )

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Help me answer this question and get yourself some points!
Marrrta [24]

Answer:

A×B=C×D

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4 0
2 years ago
You drop a rock down a well that is 5.4 m deep. How long does it take the rock to hit the bottom of the well?
Natali5045456 [20]
Equation of motion:

y_{f}=y_{o}+v_{o}t+ \frac{1}{2} at^{2}

Since initial velocity is zero, the second term goes away:

y_{f}=y_{o}+0+ \frac{1}{2} at^{2}

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3 years ago
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