When do we hit light on a coloured water bottle filled with water it forms coloured shadow why
A shadow is formed when light is blocked by an opaque or translucent object. Opaque objects, such as a tree, completely block light and form a dark shadow. Translucent materials, such as tissue paper, allow partial light through, which scatters and creates a faint shadow. Transparent objects, such as glass, do not create a shadow because the light passes through in a straight line.