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