कैथोड किरण नली
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thumb|kaithod kiran nali (aangrezi:Cathode Ray Tube) kaithod kiran nali ek vaijnanik upakaran hai. kaithod kiran nali ilektr aaun adi ke aandar tatha bahar ka vyas mapane ka yantr hai.
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thumb|kaithod kiran nali (aangrezi:Cathode Ray Tube) kaithod kiran nali ek vaijnanik upakaran hai. kaithod kiran nali ilektr aaun adi ke aandar tatha bahar ka vyas mapane ka yantr hai.
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