Chemistry, 05.02.2020 11:48 jorgereyes01

Which of the following was most clearly, even uniquely perhaps, revealed by the discovery of the photoelectric effect?

1. the heisenberg uncertainty principle (the
indeterminate, probabilistic character of nature)

2. energy/quantization

3. wave/particle duality

4. superconductivity

5. relativity

Answers: 3

Show answers

Answers

Answer from: lamanihill

The discovery of the photoelectric effect reveals $\boxed{{\text{3}}{\text{.}}\;{\text{wave - particle duality}}}$ .

Further explanation:

Photoelectric effect is the phenomenon in which metals having certain minimum frequency emits electron when exposed to electromagnetic radiation. The electrons emitted are called as photoelectrons.

The electrons are emitted as a result of absorption of energy from electromagnetic radiation of high frequency. Electromagnetic radiation such as ultraviolet light excites electrons to higher energy level called as an excited state of electrons.

Some features of photoelectric effects are written as follows:

1. The energy of photon is proportional to frequency of light.

2. A certain minimum frequency called as threshold frequency is needed by metal to emit electrons below which no electron are emitted. It is denoted by ${\nu }}_{\text{o}}}$ .

3. Kinetic energy of electron is proportional to frequency of electromagnetic radiation.

4. Number of electrons emitted per second is proportional to intensity of light.

Wave-particle duality is the phenomenon in which photon exhibit properties of both particle and wave.

According to photoelectric effect, light can exhibit both particle as well as wave nature. Each photon carries definite amount of energy that is directly proportional to frequency and behaves as a particle.

On the other hand, when light hits metal surface having certain minimum frequency it causes emission of electrons. The minimum amount of energy and frequency translates into a maximum wavelength. Therefore light propagates and interacts with metal surface to eject electron as it is a wave.

Hence the phenomenon of wave-particle duality is best revealed by discovery photoelectric effect.

Learn more:

1. What is the charge associated with each molecule of HCl

2. Write the chemical equation

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Photoelectric effect

Keywords: Photon, photoelectric effect, energy, metals, light, particle, electromagnetic radiation, frequency, threshold frequency, kinetic energy and wave-particle duality.

Answer from: Quest

yea hi

explanation:

Answer from: Quest

The answer is probably c. xylem

Another question on Chemistry

Chemistry, 22.06.2019 10:50

Someone offer some answers to this, i will give 98 coins and mark as brainliest! i will put the rest of the lab down in the comments,solutions pre-lab questions: in this lab, you will make fruit drinks with powdered drink mix. complete the pre-lab questions to get the values you need for your drink solutions. calculate the molar mass of powered fruit drink mix, made from sucrose (c12h22o11).using stoichiometry, determine the mass of powdered drink mix needed to make a 1.0 m solution of 100 ml. (hint: use molarity = to find the moles of drink mix, then convert moles to grams using a mole conversion.)what mass of powdered drink mix is needed to make a 0.5 m solution of 100 ml?

Answers: 1

Answer

Chemistry, 22.06.2019 11:10

Compare and contrast solutions and suspensions

Answers: 1

Answer

Chemistry, 23.06.2019 01:30

What happens to the concentration of hydronium ions as the ph of a solution increases? a. hydronium ion concentration stays the same b. hydronium ion concentration decreases c. hydronium ion concentration increases

Answers: 1

Answer

Chemistry, 23.06.2019 23:10

Exactly 1.00 ml of an aqueous solution of hno3 is diluted to 100.0 ml. it takes 29.78 ml of 0.0142 m ca(oh)2 to convert all of the hno3 to ca(no3)2. the other product of the reaction is water. calculate the molarity of the undiluted hno3 solution. petrucci, ralph h.. general chemistry (p. 144). pearson education. kindle edition.

Answers: 2

Answer

You know the right answer?

Which of the following was most clearly, even uniquely perhaps, revealed by the discovery of the pho...

Questions