The sun's rays that stream through the clouds are often referred to as "crepuscular rays." These rays occur when sunlight is scattered by particles in the atmosphere, creating beams of light that appear to radiate from the sun, especially during sunrise or sunset. The phenomenon is enhanced when clouds partially obscure the sun, allowing for a striking visual effect.
Maybe you are referring to crepuscular rays? http://en.wikipedia.org/wiki/Crepuscular_rays
UV rays have shorter wavelengths and higher energy levels compared to visible light and infrared radiation, allowing them to penetrate rain clouds more easily. Rain clouds may scatter and absorb some of the UV radiation, but a significant portion can still pass through due to their high energy levels.
It's simple really. Clouds block the sun just like anything else does: by not allowing the sun's light to pass through. Clouds actually reflect much of the sun's rays back out into space. However, this does not mean that all rays are reflected. This is why we can still see during the day on a cloudy day. Like a piece of white paper or thin curtain, there are still small holes or pores that light waves can travel through. Being that clouds are mainly water particles, light can still pass through, but most of it is refracted or reflected.
Ultraviolet (UV) rays can still penetrate through clouds and cause sunburn. These rays can reach your skin even when it's overcast, so it's important to wear sunscreen and protect your skin even on cloudy days.
Focus or the focal point.
Maybe you are referring to crepuscular rays? http://en.wikipedia.org/wiki/Crepuscular_rays
Crepuscular rays
Approximately 80 of UV rays can pass through clouds, even on a cloudy day, increasing the risk of sun exposure and potential skin damage.
"crepuscular rays" is the technical term...
The alarm called out to alert the people to the fire.
thermal radiation - infa red rays
Sunlight breaking through the clouds shows how light rays travel in straight lines. When sunlight hits gaps in the clouds, it continues in a straight path towards Earth, creating visible beams of light. This phenomenon is a good example of how light travels in straight lines until it encounters an obstacle or medium that may cause it to bend or scatter.
Positive rays are called canal rays because they are positively charged particles emitted by the anode and accelerated through a small canal or channel in the cathode of a cathode ray tube. These rays were discovered by Eugen Goldstein and were later studied by J.J. Thomson.
No they are not because they are rays of light
UV rays have shorter wavelengths and higher energy levels compared to visible light and infrared radiation, allowing them to penetrate rain clouds more easily. Rain clouds may scatter and absorb some of the UV radiation, but a significant portion can still pass through due to their high energy levels.
Anode rays are positively charged .so they are bend towards perforated cathode which is negatively charged and pass through them.since they have passed through canals or holes by producing fluorescence. Therefore they are known as canal rays.
It's simple really. Clouds block the sun just like anything else does: by not allowing the sun's light to pass through. Clouds actually reflect much of the sun's rays back out into space. However, this does not mean that all rays are reflected. This is why we can still see during the day on a cloudy day. Like a piece of white paper or thin curtain, there are still small holes or pores that light waves can travel through. Being that clouds are mainly water particles, light can still pass through, but most of it is refracted or reflected.