Paragraph for below question
नीचे दिये गये प्रश्न के लिए अनुच्छेद
An electron, a proton, an alpha particle and a neutron are projected in a external uniform magnetic field region with same linear momentum. The magnetic field is perpendicular and directed into the plane of the paper. The subsequent tracks of the particles are labelled in the figure.Q. The ratio of time period of circular path followed by proton and alpha particle will be
प्रश्न - प्रोटॉन तथा अल्फा कण द्वारा अनुसरित वृत्तीय पथ के आवर्तकाल का अनुपात होगा