Advertisements
Advertisements
प्रश्न
The mirror used by the ophthalmologist to examine the eye is _______.
Advertisements
उत्तर
The mirror used by the ophthalmologist to examine the eye is Concave mirror.
APPEARS IN
संबंधित प्रश्न
State two positions in which a concave mirror produces a magnified image of a given object. List two differences between the two images.
Fill in the following blank with suitable word:
The focal length of a concave mirror is the distance from the ......... to the mirror.
According to New Cartesian Sign Convention:
(a) focal length of concave mirror is positive and that of convex mirror is negative
(b) focal length of both concave and convex mirrors is positive
(c) focal length of both concave and convex mirrors is negative
(d) focal length of concave mirror is negative and that of convex mirror is positive
Describe the nature of image formed when the object is placed at a distance of 20 cm from a concave mirror of focal length 10 cm
Draw and complete the following diagrams to show what happens to the beams of light as they enter the glass block and then leave it:
Draw the ray diagram and also state the position, the relative size and the nature of image formed by a concave mirror when the object is placed at the centre of curvature of the mirror.
Study the following ray diagram and list two mistakes committed by the student while tracing it. Rectify these mistakes by drawing the correct ray diagram to show the real position and size of the image corresponding to the position of the object AB.
______ is used as reflectors in torchlight.
Concave mirrors are used by dentists to examine teeth. Why?
Between which two points of a concave mirror should an object be placed to obtain a magnification of -2?
