Please select a subject first
Advertisements
Advertisements
Explain the following term related to spherical lenses:- aperture
Concept: undefined >> undefined
Explain the following term related to spherical lenses:- principal focus
Concept: undefined >> undefined
Advertisements
Explain the following term related to spherical lenses: focal length
Concept: undefined >> undefined
What happens when a ray of light falls normally (or perpendiculary) on the surface of a plane mirror?
Concept: undefined >> undefined
A ray of light is incident on a plane mirror at an angle of 30°. What is the angle of reflection
Concept: undefined >> undefined
A ray of light strikes a plane mirror at an angle of 40° to the mirror surface. What will be the angle of reflection?
Concept: undefined >> undefined
A ray of light is incident normally on a plane mirror. What will be the:
- angle of incidence?
- angle of reflection?
Concept: undefined >> undefined
A ray of light is incident normally on a plane mirror. What will be the
angle of reflection?
Concept: undefined >> undefined
What type of image is formed:
- in a plane mirror?
- on a cinema screen?
Concept: undefined >> undefined
What type of image is formed:
on a cinema screen?
Concept: undefined >> undefined
What kind of mirror is required for obtaining a virtual image of the same size as the object?
Concept: undefined >> undefined
What is the name of the phenomenon in which the right side of an object appears to be the left side of the image in a plane mirror?
Concept: undefined >> undefined
The letter F is placed in front of a plane mirror:
What is the name of the phenomenon involved?
Concept: undefined >> undefined
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
Concept: undefined >> undefined
Name the two types of spherical mirrors. What type of mirror is represented by the:
- back side of a shining steel spoon?
- front side of a shining steel spoon?
Concept: undefined >> undefined
Name the two types of spherical mirrors. What type of mirror is represented by the:
front side of a shining steel spoon?
Concept: undefined >> undefined
What is the relation between the focal length and radius of curvature of a spherical mirror (concave mirror or convex mirror)?
Concept: undefined >> undefined
Define (a) centre of curvature (b) radius of curvature (c) pole (d) principal axis, and (e) aperture, of a spherical mirror with the help of a labelled diagram
Concept: undefined >> undefined
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of carbon paper for some time, a hole is burnt in the carbon paper.
- What is the nature of spherical mirror?
- Why is a hole burnt in the carbon paper?
- At which point of the spherical mirror the carbon paper is placed?
- What name is given to the distance between spherical mirror and carbon paper?
- What is the advantage of using a carbon paper rather than a white paper?
Concept: undefined >> undefined
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
Why is a hole burnt in the carbon paper?
Concept: undefined >> undefined
