Physics
Grade-10
Easy
Question
Principal axis passes through _____.
- F1 and F2
- C1 and C2
- Optical center
- All of the above
Hint:
A line which is passing through both the curvatures of the lens is the principal axis. It connects the two centers of the lens.
The correct answer is: All of the above
The principal axis passes through the principal focuses (F1, F2), the optical center, and the center of curvature( C1, C2). i.e. all of the above
- An imaginary straight line that passes through the center of a lens is called the principal axis.
- It passes through the principal focus and the center of curvature.
- The principal axis also passes through the optical center.
Related Questions to study
Physics
A biconcave/biconvex lens has ____ focal point(s) and ____ center(s) of curvature.
A biconcave/biconvex lens has ____ focal point(s) and ____ center(s) of curvature.
PhysicsGrade-10
Physics
Light travelling from air to which of the following mediums bends towards the normal?
Light travelling from air to which of the following mediums bends towards the normal?
PhysicsGrade-10
Physics
Which of the following mediums (with refractive indices given) creates the highest bending of light?
Which of the following mediums (with refractive indices given) creates the highest bending of light?
PhysicsGrade-10
Physics
The central point of a lens is called its _____.
The central point of a lens is called its _____.
PhysicsGrade-10
Physics
The diameter of the outer edge of a lens is called the ____.
The diameter of the outer edge of a lens is called the ____.
PhysicsGrade-10
Physics
Analyse from the picture and find out the substance that has the highest refractive index.
Analyse from the picture and find out the substance that has the highest refractive index.
PhysicsGrade-10
Physics
In which of the following purposes lenses are not used?
In which of the following purposes lenses are not used?
PhysicsGrade-10
Physics
A light ray enters medium 2 from medium 1. If the medium 2 has a refractive index greater than medium 1, the light ray would _____ on entering medium 2.
A light ray enters medium 2 from medium 1. If the medium 2 has a refractive index greater than medium 1, the light ray would _____ on entering medium 2.
PhysicsGrade-10
Physics
Refraction of light takes place because of the _____ that light encounters on passing from one medium to another.
Refraction of light takes place because of the _____ that light encounters on passing from one medium to another.
PhysicsGrade-10
Physics
The absolute refractive index of glass is ___.
The absolute refractive index of glass is ___.
PhysicsGrade-10
Physics
The refractive index of a pair of medium depends upon the speed of light in ____.
The refractive index of a pair of medium depends upon the speed of light in ____.
PhysicsGrade-10
Physics
The speed of light in glass is ____ that in water.
The speed of light in glass is ____ that in water.
PhysicsGrade-10
Physics
The absolute refractive index is the refractive index of a material medium w.r.t _____.
The absolute refractive index is the refractive index of a material medium w.r.t _____.
PhysicsGrade-10
Physics
The speed of light in glass is ____ that in the air.
The speed of light in glass is ____ that in the air.
PhysicsGrade-10
Physics
What is the SI unit of measurement of refractive index of a medium?
What is the SI unit of measurement of refractive index of a medium?
PhysicsGrade-10
