10 It Is Desired To Project The Image Of An Object Four Times Its Actual Size Using A Lens Of Focal Length 20 Cm How F 1 (13.53 KiB) Viewed 53 times
10 It Is Desired To Project The Image Of An Object Four Times Its Actual Size Using A Lens Of Focal Length 20 Cm How F 2 (38.57 KiB) Viewed 53 times
10) It is desired to project the image of an object four times its actual size using a lens of focal length 20 cm. How far from the lens should the object be placed? A) 80 cm B) 5.0 cm C) 100 cm D) 25 cm E) 4.0 cm
uho = 4 - म 6 hi त ho ally di = - 4 do -4 के + क do का 4do 4do-doi त . 17 । 20 20 . = udi = di d.15
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