61.
Apparent position of the star appears raised due to
A
atmospheric refraction
B
scattering of light
C
both a and b
D
none of these
Loading practice questions
64 practice sets · Page 4 of 4
Apparent position of the star appears raised due to
atmospheric refraction
scattering of light
both a and b
none of these
A student traces the path of a ray through a glass prism for four different values of angle of incidence. On analysing the diagrams he is likely to conclude that the emergent ray
is always parallel to the incident ray.
is always perpendicular to the incident ray.
is always parallel to the refracted ray.
always bends at an angle to the direction of incident ray.
A student is observing the diagram showing the path of a ray of light passing through a glass prism. He would find that for all angles of incidence the ray of light bends:
towards the normal while entering into the prism and away from the normal while emerging out of the prism
away from the normal while entering into the prism and towards the normal while emerging out of the prism.
away from the normal while entering as well as while emerging out of the prism.
towards the normal while entering as well as while emerging out of the prism.
A spectrum of light is observed when white light is directed to a prism as
the different colours in the white light bend away from the normal line at different angles onentering prism.
the different colours in the white light bend towards the normal line at different angles on entering prism.
the different colours in the white light bend away from the normal at same speed to each other on entering the prism.
the different colours in the white light bend towards the normal at same speed to each other on entering prism.