Answer :
As the Potential difference is 150V, Hence the accelerating potential will be 600.
What is De Broglie's Principle ?
According to the de Broglie principle, matter may behave in waves and particles just like light can (photons). As a result, each particle will have a wavelength that matches its wave behaviour.
Any moving particle, whether microscopic or macroscopic, will be connected with a wave nature, according to Louis de Broglie's thesis. It was known as "Matter Waves." If a particle were to act like a wave, he also suggested a relationship between its velocity and momentum and wavelength.
Any feature of the behaviour or characteristics of a material entity that fluctuates in time or space in accordance with the mathematical equations that explain waves is referred to as a de Broglie wave, also known as a matter wave.
The following formula we can apply. K = Vq …
K = ½ mv²
p = mv …
p = h/ λ
To get half the λ, the p must be doubled …
To double the momentum, the velocity must be doubled …
When the velocity is doubled, the Kinetic energy is 4x as much
To get 4x the K, we need 4x the potential.
As the Potential is 150V, Hence the accelerating potential will be 600.
To learn more about De Broglie's Principle refer to :
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