Advertisements
Advertisements
प्रश्न
The boxes in figure (a, b, c) represent mirrors; insert a mirror which will reflect the incident ray as shown in the diagram.
Advertisements
उत्तर
a. Plane Mirror
b. Convex Mirror
c. Concave Mirror
APPEARS IN
संबंधित प्रश्न
A ray of light strikes a plane mirror at an angle of 40° to the mirror surface. What will be the angle of reflection?
A concave lens produces an image 20 cm from the lens of an object placed 30 cm from the lens. The focal length of the lens is:
(a) 50 cm
(b) 40 cm
(c) 60 cm
(d) 30 cm
State the direction of incident ray which after reflection from a spherical mirror gets reflected along its own path. Give a reason.
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
Three mirrors are created from a single sphere. Which of the following - pole, centre of curvature, radius of curvature, principal axis - will be common to them and which will not be common?
Explain the following term:
Incident ray
Draw diagram/diagrams to show them.
The diagram below in Figure, shows a convex mirror. C is its centre of curvature and F is its focus. (i) Draw two rays from A and hence locate the position of image of object OA. Label the image IB. (ii) State three characteristics of the image.
Choose the correct alternative and rewrite the following:
Mirror used by a dental surgeon is ..........................
