Question : Explain about secondary rainbow.
Answer: Rainbow is formed due to four step process for secondary rainbow.
We can observe the rainbow in a direction when our back towards the sun. Some times two rainbows are seen. The common rainbowknown as the primary rainbow is a coloured band having redon the out side and voilet on the innerside. It is formed due to two refractions and one reflection of sunlight falling on the rain drops. The other rainbow called the secondary rainbow is a coloured band having voilet on the out side on the red on the innerside. It is formed due to two refractions and two reflections of sunlight falling on the rain drops. The intensity of light is reduced at the second reflection and hence the secondary rainbow is fainter than the primary rainbow. The rainbows are visible only, when the altitude of the sun is less than 42°. A complete rainbow can see in an aeroplane flying at high altitudes. ---- Sri K.V.PRASAD , VIZAG 8712133236
Answer: Rainbow is formed due to four step process for secondary rainbow.
We can observe the rainbow in a direction when our back towards the sun. Some times two rainbows are seen. The common rainbowknown as the primary rainbow is a coloured band having redon the out side and voilet on the innerside. It is formed due to two refractions and one reflection of sunlight falling on the rain drops. The other rainbow called the secondary rainbow is a coloured band having voilet on the out side on the red on the innerside. It is formed due to two refractions and two reflections of sunlight falling on the rain drops. The intensity of light is reduced at the second reflection and hence the secondary rainbow is fainter than the primary rainbow. The rainbows are visible only, when the altitude of the sun is less than 42°. A complete rainbow can see in an aeroplane flying at high altitudes. ---- Sri K.V.PRASAD , VIZAG 8712133236