Posts

Showing posts with the label physics Mock mest

2. UP pgt physics mock test || pgt physics mock test || upsessb pgt mock test || physics Mock mest

Learn To Converge Your Dreams with Durgam Vigyan Sansthana Institute. 1. A particle of mass m moving with velocity 1 m/s collides perfectly elastically with another particle of mass 2m (at rest). If the incident particle is deflected by 90°, the heavy mass will make an angle with the initial direction of m, equal to: 1. 30 degree 2. 45 degree 3. 60 degree 4. 90 degree 2. A solid sphere of mass M, radius R and having moment of inertia about an axis passing through the centre of mass as I is recast into a disc of thickness t, whose moment of inertia about an axis passing through its edge and perpendicular to its plane remain 1. Then radius of disc is: 1. 8R/sqrt(5) 2. 4R/sqrt(5) 3. 2R/sqrt(15) 4. 6R/sqrt(15) 3. A thin rod of length 3L is bent at right angle from one end as sho...