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प्रश्न
A glass block 3.0 cm thick is placed over a stamp. Calculate the height through which the image of the stamp is raised. Refractive index of glass is 1.54.
संख्यात्मक
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उत्तर
\[ {}^{a}\mu_{g} = \frac{\text{Real depth}}{\text{Apparent depth}}\]
\[{}^{a}\mu_{g} = \frac{3.0 \ \text{cm}}{\text{Apparent depth}}\]
\[ \therefore \ \text{Apparent depth} = \frac{3.0}{1.54} \]
= 1.94 cm
∴ Height through which image is raised = (3 − 1.94) = 1.06 cm
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