Advertisements
Advertisements
प्रश्न
A ray of light travels from a denser medium to a rarer medium. How will it bend?
उत्तर
When a ray of light travels from a DENSER medium to a RARER medium it will bend AWAY from normal
.
APPEARS IN
संबंधित प्रश्न
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 is the advantage of using a carbon paper rather than a white paper?
A diverging lens is used in:
(a) a magnifying glass
(b) a car to see objects on rear side
(c) spectacles for the correction of short sight
(d) a simple camera
Draw suitable diagrams to illustrate the action of (i) concave mirror and (ii) convex mirror on a beam of light incident parallel to the principal axis.
State the position of object for which the image formed by a concave mirror is of same size.
Which mirror will you prefer to use as a rear view mirror in a car : plane mirror or convex mirror? Give one reason.
State the kind of mirror used
(a) By a dentist,
(b) As a search-light reflector.
The focal length of a concave mirror is 10 cm. Find its radius of curvature.
What do you understand by the term real image?
Draw a ray diagram to show that a convex mirror has a wider field of view.
What is the focal length (f) of a mirror?
