UHS MDCAT 2016 PAPER UHS MDCAT 2016 ( PART 4 ) 1. Resistance between two opposite faces of square thin film of area 1 mm^2 having thickness of 1 μm if resistivity of material is 10-6 Ω will be: NOTE: This question was deleted 100 Ω 1 Ω 10 Ω 1000 Ω 2. Total resistance between ‘A’ and ‘B’ in the given circuit is: 5.6 Ω 6.6 Ω 3.33 Ω 0.33 Ω 3. ‘F’ is maximum force acting on a conductor. Now if we change the direction of conductor by making an angle of 45° with the magnetic field then the force becomes: 2F F/√2 F/2 √2F 4. If we doubled all the parameters of the force acting on current carrying conductor and θ = 90° then magnetic force becomes: Four-times Half Eight-times Double 5. The force acting on current carrying conductor will be maximum if the angle between magnetic field and conductor is: 0° 90° 60° 30° 6. The shadow of the bones in X-rays photographic film appears lighter than the surrounding flesh due to: Bones absorb greater amount of X-rays Bones absorb less amount of X-rays Bones reflect greater amount of X-rays Bones totally reflect X-rays 7. The atom is excited to an energy level Ei from its ground state energy level Eo, the wavelength of the radiations emitted is: Ei/hc – Eo/hc hc / (Ei – Eo) (Ei – Eo) / hc (Eo – Ei) / hc 8. Which one of the following gas is the lasing or active medium in the laser tube Hydrogen Carbon dioxide Neon Helium 9. The target of X-ray tube is made up of which metal Tungsten Iron Nickel Brass 10. The X-rays consists of: High energy γ-rays High energy proton High energy electrons High energy photons Loading … Pages: 1 2 3 4 5 6
