Advertisements
Advertisements
Question
Draw a ray diagram to show the formation of image of an object placed between the focus and centre of curvature of a concave mirror. State the position, size and nature of the image.
Advertisements
Solution
OBJECT PLACED BETWEEN C and F :
A real, inverted and magnified image is formed beyond the centre of curvature
The image formed A’B’ is beyond C ← position
Enlarged ← size
inverted and real ← nature
APPEARS IN
RELATED QUESTIONS
Fill in the following blank with suitable word:
Parallel rays of light are reflected by a concave mirror to a point called the ..........
Draw a ray diagram showing how a concave mirror can be used to produce a real, inverted and diminished image of an object.
Name the type of mirror used by dentists. How does it help?
Write down a formula for the magnification produced by a concave mirror.
in terms of height of object and height of image
When an object is placed at a distance of 15 cm from a concave mirror, its image is formed at 10 cm in front of the mirror. Calculate the focal length of the mirror.
A converging mirror forms a real image of height 4 cm of an object of height 1 cm placed 20 cm away from the mirror:
- Calculate the image distance.
- What is the focal length of the mirror?
Radius of curvature of a spherical mirror is ............. its focal length.
Match the following.
| Convex mirror | Radio telescopes |
| Parobolic mirror | Rear – view mirror |
| Snell’s law | Kaleidoscope |
| Dispersion of light | sin i/sin r =μ |
| Refractive index | Rainbow |
A concave mirror of radius 30 cm is placed in water. It’s focal length in air and water differ by ______.
______ mirrors make things look larger when objects are placed close to them.
