A particle moves in a closed orbit around the orgin . The de- Broglie wave length of the particle varies cyclically between two values $ \lambda_1 , \lambda_2$ with $ \lambda_1 > \lambda_2$ Which of the following statements are true ?

Question

$\begin{array}{1 1} \text{The Particle could be moving in a circular orbit with origin as center } \\ \text{The Particle could be moving in an elliptical orbit with origin as center } \\ \text{when the de Broglie wave length is } \lambda_1 \text{the Particle is nearest the origin than when its value is } \lambda_2 \\ \text{when the de Broglie wave length is } \lambda_2 \text{the Particle is nearest the origin than when its value is } \lambda_1 \end{array} $