Physics
Grade-10
Easy
Question
The bulged out spherical surface is a ____ surface.
- Concave
- Convex
- Plane
- Cannot say
Hint:
The convex portion of a spherical surface is a surface that is bulged outwards.
The correct answer is: Convex
The bulged out spherical surface is a convex surface.
- The convex surface is bulged outwards and the concave portion is bent inwards at the center.
- The convex lens has two surfaces bulged outwards.
- It is thicker at the center and thinner towards the edges.
Related Questions to study
Physics
The point where a ray of parallel beam of light converges to after refraction through a convex lens is called ____.
The point where a ray of parallel beam of light converges to after refraction through a convex lens is called ____.
PhysicsGrade-10
Physics
A light ray enters medium 2 from medium 1. If the medium 2 has a refractive index less 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 less than medium 1, the light ray would _____ on entering medium 2.
PhysicsGrade-10
Physics
Which of the following objects does not refract light?
Which of the following objects does not refract light?
PhysicsGrade-10
Physics
The distance between the focus and the optical center is called the ____.
The distance between the focus and the optical center is called the ____.
PhysicsGrade-10
Physics
Which of the following can be used to light up a fire?
Which of the following can be used to light up a fire?
PhysicsGrade-10
Physics
Refractive index is a property of ____.
Refractive index is a property of ____.
PhysicsGrade-10
Physics
Principal axis passes through _____.
Principal axis passes through _____.
PhysicsGrade-10
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
