Proton and electron are moving along circular path with same speed. Find out ratio of debroglie wavelength that is λe/λp

Question

Proton and electron are moving along circular path with same speed. Find out ratio of debroglie wavelength that is $\lambda_e\over\lambda_p$. If m_p = 1836 m_e.

(1) 1836

(2) 1837

(3) $1\over1836$

(4) $1\over1837$

Comments

Dual nature of matter and radiation, Wave nature of matter

Answer 1

Ans. (1) 1836

Sol. $\lambda={h\over mv}$

${\lambda_e\over\lambda_p}={m_p\over m_e}=1836$