Advertisements
Advertisements
प्रश्न
State the kind of mirror used
(a) By a dentist,
(b) As a search-light reflector.
Advertisements
उत्तर
(a) Concave mirror
(b) Concave mirror
APPEARS IN
संबंधित प्रश्न
Name the two types of spherical mirrors. What type of mirror is represented by the:
back side of a shining steel spoon?
Write the formula for a lens connecting image distance (v), object distance (u) and the focal length (f). How does the lens formula differ from the mirror formula?
A small object is placed 150 mm away from a diverging lens of focal length 100 mm.
(i) Copy the figure below and draw rays to show how an image is formed by the lens.
Figure
(ii) Calculate the distance of the image from the lens by using the lens formula.
What is a spherical mirror?
Name the mirror which always produces an erect and virtual image. How is the size of image related to the size of object?
Name the kind of mirror used to obtain:
A real and diminished image.
The image formed by a convex mirror is
An object 5 cm high forms a virtual image of 1.25 cm high, when placed in front of a convex mirror at a distance of 24 cm. Calculate:
- the position of the image
- the focal length of the convex mirror.
Define the following term:
convex mirror
