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