The effectiveness of a spotlight on a rainy day depends on several factors, including the intensity of the rain, the angle of the spotlight, and the distance between the spotlight and the object being illuminated.
In general, heavy rain can significantly reduce visibility, making it more difficult to see objects even with a bright spotlight. Additionally, rain can scatter light, causing it to bounce in different directions and reducing the amount of light that reaches the intended target.
The angle of the spotlight can also affect its effectiveness on a rainy day. If the spotlight is pointed directly into the rain, it may be more difficult to see the illuminated object because of the scattered light. However, if the spotlight is angled to the side, the rain may not affect the visibility as much.
Finally, the distance between the spotlight and the object being illuminated can also impact its effectiveness on a rainy day. The further away the object, the more the light will be dispersed by the rain, making it harder to see.