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11 Questions

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De-Broglie's Duality Hypothesis Quiz

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Questions and Answers

According to de-Broglie, what is associated with every moving particle?

Particle accelerator

Wave (correct)

Electric charge

Magnetic field

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

$E = \frac{hc}{\lambda}$

$E = h\nu$ (correct)

$E = pc$

$E = mc^2$

How does the de-Broglie wavelength change with the speed of a particle?

Decreases (correct)

Increases

Remains constant

Becomes zero

What does de-Broglie's relation state about the de-Broglie wavelength for particles?

It is inversely proportional to mass Signup and view all the answers

In the context of de-Broglie's hypothesis, what is NOT true about matter waves?

They are electromagnetic in nature Signup and view all the answers

How does the de-Broglie wavelength change with the mass of a particle?

Increases Signup and view all the answers

What formula is used to calculate the mass of a particle when its velocity is comparable to the velocity of light?

m = 2201v/c Signup and view all the answers

What is the energy acquired by a particle accelerated through a potential difference V?

E = eV Signup and view all the answers

Which formula represents the de-Broglie wavelength of an electron accelerated through a potential difference V?

λ = V12.27A Signup and view all the answers

What are the values used for mass (m), charge (e), and Planck's constant (h) in the calculations of de-Broglie wavelength?

m = 9.1 × 1031 kg; e = 1.6 × 1019 C; h = 6.62 × 1034 Js Signup and view all the answers

If an electron is accelerated through a potential difference of 200 volts, what will be the approximate de-Broglie wavelength?

1.227 A Signup and view all the answers