Shadows are

Options

A. virtual
B. real
C. llusion
D. permanent

Explanation

**Step-by-Step Solution:**

1. **Understanding Shadows**: Shadows are formed when an object blocks light from a light source. This creates an area where the light cannot reach, resulting in a dark shape on a surface.

2. **Types of Images**: There are two main types of images: real and virtual. A real image can be projected onto a screen, while a virtual image cannot be projected and can only be seen by looking through a lens or mirror.

3. **Demonstration with a Light Source**: To demonstrate that shadows are real, we can set up an experiment. Take a light source, such as a torch, and point it towards an object placed on a table.

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