[Of rectilinear propagatio...] When light enters a closed room through a small hole in the door, the image of an outside building a

For Competitive Exams

When light enters a closed room through a small hole in the door, the image of an outside building appears as inverted on the opposite wall. This is because

The hole acts as a convex lens

Light takes curvature at the edges of the hole

Of rectilinear propagation of light

The hole acts as a concave lens

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