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Grade: 12
        
Doubt of ray optics .A glass slab with n=1.5 of thickness 3 cm is placed on ink spot . A person  looks at it from a distance of 5 cm above the ink spot . The distance of spot will appear to be
 
one year ago

Answers : (1)

Eshan
askIITians Faculty
2095 Points
							Dear student,
Apparent depth of the ink spot when seen from above=\dfrac{3cm}{1.5}=2cm
Hence the distance of spot when seen from a height of 5cm is5cm+2cm=7cm
one year ago
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