Answer the case-based question given below:
Atmospheric refraction is the phenomenon of bending of light on passing through earth’s atmosphere. As we move above the surface of earth, density of air goes on decreasing. Local conditions like temperature etc. also affect the optical density of earth’s atmosphere.
When white light is passed through a glass prism it splits into its spectrum of colours (in order violet, indigo, blue, green, yellow, orange and red) and this process of white light splitting into its constituent colours is termed as dispersion.
When sunlight enters the Earth's atmosphere, it is refracted in all possible directions by the atoms and molecules of various gases present. This is known as 'light scattering'. When a beam of light interacts with a particle of the medium in this phenomenon, it is redirected in all directions. Scatterer refers to the medium's interacting particles.
Read the above passage carefully and give the answer of the following question:
When white light is passed through a glass prism it splits into its spectrum of colours (in order violet, indigo, blue, green, yellow, orange and red) and this process of white light splitting into its constituent colours is termed as dispersion.
When sunlight enters the Earth's atmosphere, it is refracted in all possible directions by the atoms and molecules of various gases present. This is known as 'light scattering'. When a beam of light interacts with a particle of the medium in this phenomenon, it is redirected in all directions. Scatterer refers to the medium's interacting particles.
Read the above passage carefully and give the answer of the following question:
i. Due to atmospheric refraction, apparent length of the day
ii. In absence of atmosphere, the colour of sky appears
iii. The sun appears oval shaped or flattened due to
iv. Twinkling of stars and non-twinkling of planets is accounted for by
v. Apparent position of the star appears raised due to