Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Dual Nature of Radiation and Matter

Question:

Assertion (A) : An electron and a proton are accelerated through the same potential difference. The de-Broglie wavelength associated with the electron is longer.

Reason (R) : De-Broglie wavelength associated with a moving particle is \(\lambda\) = h/p where, p is the linear momentum.

Options:

Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true but(R) is NOT the correct explanation of (A).

(A) is true but (R) is false.

Both (A) and (R) are false.

Correct Answer:

Both (A) and (R) are true but(R) is NOT the correct explanation of (A).

Explanation:

Since, mass of electron is lesser than the mass of proton, de Broglie wavelength of proton is shorter than that of electron.