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A smell object Q of lengthQ of length 1mmleis along the principleaxis of a sphericalglass of radiusR = 10cm and refreactiveindex 3//2. The objectis seenfrom airalong theprincipleaxis form left. The distanceof objectfrom teh centre P is 5cm. Find thesize of image is it real, inverted?

Answer»


Solution :`(n_(2))/(v) - (n_(1))/(U) = (n_(2) - n_(1))/(R), (1)/(v) - (3)/(2xx(-15)) = (1-3//2)/(-10)`
`(1)/(v) + (1)/(10) = (-1)/(10) rARr v = -20CM` (VIRTUAL)
`- (n_(2))/(v^(2)) dv + (n_(1))/(u^(2)) du = 0, (1)/(400)dv = (3)/(2xx225) XX 1mm`
`dv = (400)/(2xx75)mm (8)/(3)mm`
`+ve,dv rArr "no inversion"`


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