Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Dual Nature of Radiation and Matter

Question:

The kinetic energy of a proton and that of an alpha particle are 4eV and 1eV respectively. What will be the ratio of the de Broglie wavelength associated with them ?

Options:

2:1

1:1

1:2

4:1

Correct Answer:

1:1

Explanation:

de-Broglie wavelength : λ = 1/(2mK)1/2

m : mass

K : kinetic energy