Advertisements
Advertisements
प्रश्न
What happens when a ray of light falls normally (or perpendiculary) on the surface of a plane mirror?
Advertisements
उत्तर
When a ray of light falls normally (or perpendicularly) on the surface of a plane mirror, it gets reflected along the same path because the angles of incidence and reflection are both equal to zero.
APPEARS IN
संबंधित प्रश्न
Explain the following term related to spherical lenses:- optical centre
Explain the following term related to spherical lenses:- principal focus
What type of image is formed:
in a plane mirror?
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.
What name is given to the distance between spherical mirror and carbon paper?
Name the spherical mirror which can produce a virtual and diminished image of an object.
How is the focal length of a spherical mirror related to its radius
Which are the two convenient rays that are chosen to construct the image by a spherical mirror for a given object? Explain with the help of suitable ray diagrams.
A student obtained a sharp image of a burning candle, placed at the farther end of a laboratory table, on a screen using a concave mirror. For getting better value of focal length of the mirror, the subject teacher suggested him for focusing a well illuminated distant object. What should the student do?
(A) He should move the mirror away from the screen.
(B) He should move the mirror slightly towards the screen.
(C) He should move the mirror as well as the screen towards the newly selected object.
(D) He should move only the screen towards the newly selected object.
State whether the image in part (a) is real or virtual?
Write the spherical mirror's formula and explain the meaning of each symbol used in it.
Why does a driver use a convex mirror instead of a plane mirror as a rear view mirror?
Illustrate your answer with the help of a ray diagram.
Draw a ray diagram to show the formation of image of an object kept in front of a convex mirror. State three characteristics of the image.
The radius of curvature of a convex mirror is 40 cm. Find its focal length.
Choose the correct alternative and rewrite the following:
Mirror used by a dental surgeon is ..........................
Define the following term in relation to concave mirror.
Principal focus
Define the following term in relation to concave mirror.
Radius of curvature
Is real image always inverted?
