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Frosted glass is widely used for translucent windows. The region, where a transparent adhesive tape is stuck over the frosted glass becomes transparent. The most reasonable explanation for this is
(a) diffusion of adhesive glue into glass
(b) chemical reaction at adhesive tape-glass interface
(c) refractive index of adhesive glue is close to that of glass
(d) adhesive tape is more transparent than glass
Frosted glass is widely used for translucent windows. The region, where a transparent adhesive tape is stuck over the frosted glass becomes transparent. The most reasonable explanation for this is
(a) diffusion of adhesive glue into glass
(b) chemical reaction at adhesive tape-glass interface
(c) refractive index of adhesive glue is close to that of glass
(d) adhesive tape is more transparent than glass
Answer is : (c) refractive index of adhesive glue is close to that of glass
Frosted glass has a rough layer which causes irregular refraction and makes glass translucent.
When a transparent tape which has refractive index close to that of glass is pasted over the rough surface of glass, the tape glue fills the roughness of glass. This makes glass surface more smooth and so refraction is more regular. This makes region of tape transparent.