ETEA PAST PAPER 2020 ETEA 2020 ( PART 3 ) 1. In transmission from grid station, power losses are minimized by: Increasing resistance Increasing voltage Decreasing current Increasing current 2. The domestic electricity supply has a frequency of: 100 Hz 150 Hz 50 Hz 25 Hz 3. PIV stands for: Positive inverse charge Power integrated voltage Peak integrated voltage Peak inverse voltage 4. In full wave rectification, the diodes are used: 2 1 4 3 5. The wavelength associated with an electron is of the order of: Visible light X-rays Radio waves Infrared 6. Which photon carries the most energy? Green Blue Red Violet 7. Which one of the following series lies in the ultraviolet region? Lyman series Balmer series Pascher series Bracaket series 8. The main difference between X-rays and ? rays is: Origin Frequency Wave length Energy 9. There are initially 400 atoms in a radioactive sample. What of atoms after 3 half-life? 25 200 400 50 10. Using radiation therapy, cancerous thyroid is treated with radioisotope: 235 uranium Thorium Iodine-131 Carbon 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