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Physics: Wave-Particle Duality and Electromagnetic Radiation

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Physics: Wave-Particle Duality and Electromagnetic Radiation

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Questions and Answers

What is the unit of energy in the formula E = hc / λ?

Ergs

Calories

Kilojoules

Joules (correct)

Which of the following is a characteristic of wave-particle duality?

Electrons always behave as waves

Electrons can exhibit both wave-like and particle-like behavior (correct)

Electrons always behave as particles

Electrons always behave as neither waves nor particles

What is the physical significance of the wave function 'Ψ' in quantum mechanics?

It determines the energy of an electron

It predicts the position of an electron

It completely defines a system of matter (correct)

It describes the trajectory of an electron

What is the wavelength of a photon of energy 4.576 × 10−19 J?

4.340 × 10−7 m Signup and view all the answers

What is the probability distribution of an electron in an atom?

Patterned distribution Signup and view all the answers

What is the nature of electromagnetic radiation?

It exhibits both wave-like and particle-like behavior Signup and view all the answers

What is the significance of black body radiation in quantum mechanics?

It is a proof of the quantization of energy Signup and view all the answers

What is the relationship between the energy of a photon and its frequency?

E is directly proportional to f Signup and view all the answers

What is the physical significance of the Schrödinger wave equation?

It predicts the probability distribution of an electron Signup and view all the answers

What is the nature of the energy of an electron in an atom?

It is quantized Signup and view all the answers