BALOCHISTAN MDCAT PAPER 2021 BALOCHISTAN PAPER 2021 ( PART 3 ) 1. Which of the following is the lightest particle? Photon Electron Proton Neutron 2. What is the momentum of a photon with wavelength and Planck constant (h)? P= 0 P=∞ P= h/λ P= 2h 3. The force between two charges in air is F. What will happen to the force if a metal is placed between the two charges? The force will increase The force will become zero The force will decrease The force will remain the same 4. X-ray production is the opposite of: Compton scattering Radioactive decay Photoelectric effect Electromagnetic radiation 5. The mass of a moving car is 1000 kg, its velocity is 20 m/s, and the speed of the car’s engine is 3000 RPM. What is the approximate power of the car? 2k W 12k W 6k W 18k W 6. What is the number of revolutions in 1260 degrees? 3.5 revolutions 2 revolutions 1 revolution 4 revolutions 7. What is the statement of the law of conservation of mechanical energy? Work is equal to the change in kinetic energy Energy can be created or destroyed Total energy is the sum of kinetic energy Kinetic energy plus potential energy equals a constant 8. What type of wave does not carry energy? Transverse wave Stationary wave Electromagnetic wave Longitudinal wave 9. For sterilization, the waves used are: Sound waves Ultraviolet waves Radio waves Microwaves 10. What is a galvanometer used for? Amplifying sound Detecting electric current Measuring temperature Measuring pressure Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11
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