Question

3. How is shadow formed?
...........................,............................

4. List the kind of beam of light.
........................................................

Answer 1

Answer:

3)Shadows are made by blocking light. Light rays travel from a source in straight lines. If an opaque (solid) object gets in the way, it stops light rays from traveling through it. This results in an area of darkness appearing behind the object.

4)A beam of light may be parallel, convergent or divergent, as shown in Fig. The rays from a distant light source (such as the sun) are parallel to each other, they constitute a parallel beam. In a convergent beam, the rays proceed towards a point. In a divergent beam, the rays proceed away from a point.

Explanation:

Hope this may help you...

Answer 2

Explanation:

Shadow formation:-

Sunlight that travels towards the Earth takes just over 8 minutes to reach us. When the rays reach Earth, they hit whatever is in their path. If the object they hit is opaque, the light cannot pass through, and a shadow forms. Simply speaking, a shadow is an absence of light.

Kind of beam of light:

A beam of light may be parallel, convergent or divergent, as shown in Fig. The rays from a distant light source (such as the sun) are parallel to each other, they constitute a parallel beam. In a convergent beam, the rays proceed towards a point. In a divergent beam, the rays proceed away from a point.