ETEA PAST PAPER 2020 ETEA 2020 ( PART 3 ) 1. In transmission from grid station, power losses are minimized by: Decreasing current Increasing current Increasing voltage Increasing resistance 2. The domestic electricity supply has a frequency of: 100 Hz 150 Hz 25 Hz 50 Hz 3. PIV stands for: Power integrated voltage Peak integrated voltage Peak inverse voltage Positive inverse charge 4. In full wave rectification, the diodes are used: 2 3 4 1 5. The wavelength associated with an electron is of the order of: X-rays Visible light Radio waves Infrared 6. Which photon carries the most energy? Blue Green Red Violet 7. Which one of the following series lies in the ultraviolet region? Balmer series Lyman series Pascher series Bracaket series 8. The main difference between X-rays and ? rays is: Wave length Frequency Origin Energy 9. There are initially 400 atoms in a radioactive sample. What of atoms after 3 half-life? 200 25 400 50 10. Using radiation therapy, cancerous thyroid is treated with radioisotope: Carbon Thorium 235 uranium Iodine-131 Loading … Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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Thank you, Nayab, for visiting MDCAT1.com! We sincerely appreciate your time and interest in our website. Ji wo is liye k mujhe jo paper mila tha osme itne questions thy. agr apke pas complete hai to kindly bhej de mai upadte krdo ga. Thanks