SINDH RECONDUCTED MDCAT 2024 RECONDUCTED MDCAT 2024 ( PART 7 ) 1. The energy of an X-ray photon having wavelength of 3 x 10^-10: 6.63 x 10^-20 6.63 x 10^-10 6.63 x 10^-16 6,63 x 10^16 2. The force responsible for binding the nucleus is: Coulomb’s force Strong Nuclear force Weak Nuclear force Newton force 3. When two negative beta particles are emitted from a nucleus then the mass number: Increases by 1 Increases by 3 Increases by 2 No change 4. A 40gm radioactive material is placed in a chamber, having a half-life of 20 days. How much will be left after 80 days: 40gm 2.5gm 5gm 20gm 5. Which of the following electromagnetic radiation has the highest penetrating power Gamma rays Proton rays Beta rays Alpha rays 6. The skin cancer can be caused by: Gamma radiation Alpha radiation Beta radiation Ultraviolet radiation 7. The speed of light in the vacuum is the same for all observers regardless of their relative motion or the motion of the source of the light”, is the important postulate of: Special theory of relativity General theory of relativity Special resistivity Special conductivity 8. The process of converting an alternating current waveform into a direct current waveform is referred to as: Attenuation Filtration Rectification Amplification 9. Consider three-point charges A, B and C as shown in figure. If the resultant force on charge A due to charge B and charge C is 0.024 N, the direction of resultant force will be: Towards Charge A Towards Charge C Towards Charge B Vertical to surface the charges are placed 10. The emf induced in a closed circuit is directly proportional to the rate of change of magnetic flux passing through the circuit. refers to: Coulomb’s law Faraday’s law of electromagnetic induction Lenz’s law Ohm’s law Loading … Pages: 1 2 3 4 5 6 7 8 9
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