EVERYDAY SCIENCE

Detailed explanation-1: -During morning and evening, the incident angle of the light is very small. Due to this, longer shadows are formed in the morning and evening. While at noon incident angle increases, due to which size of shadows decreases.

Detailed explanation-2: -The time when the longest shadow of any object occurs is called the local noon time at that place.

Detailed explanation-3: -The shadows at noon are shorter than the shadows in the morning or in the evening because, at noon the sun is directly above the objects and the sun rays fall vertically on the body, thus, the shadow is very short or negligible.

Detailed explanation-4: -Recall that the shortest shadow on the surface is formed when the Sun is directly over the head. Complete answer:-Sunrise and sunsets produce the longest shadows of the day, because that’s the most extreme angle possible before the horizon blocks the sun.

Detailed explanation-5: -The shortest shadow occurs when the sun reaches its highest point, at local noon. By tracking the length of the shadow cast by a stationary gnomon throughout the day, it is easy to determine the point at which the shadow is shortest.