Advertisements
Advertisements
प्रश्न
What is a real image? Name the mirror which can be used to obtain the real image of an object. What should be the position of the object relative to the mirror?
उत्तर
REAL IMAGE. “When rays of light after reflection or refraction actually meet at some other point” the image is real. Concave mirror.
Except between pole and focus, the image formed is REAL
APPEARS IN
संबंधित प्रश्न
A ray of light travels from a rarer medium to a denser medium. How will it bend?
The diagram in figure shows a ray of light AO falling on a rectangular glass slab PQRS. Complete the diagram till the ray of light emerges out of the slab. Label on the diagram the incident ray, the refracted ray and the emergent ray.
Name the mirror which always forms an erect and virtual image. What is the size of the image as compared to that of the object?
State the changes in the position, size and nature of the image when the object is brought from infinity up to the convex lens. Illustrate your answer by drawing ray diagrams.
Say TRUE or FALSE
The image formed in a pinhole camera is always inverted
Figure shows a pencil placed above a mirror
- Draw its image formed by the mirror
- Show how light rays from the object are reflected at the mirror to form the image for the eye.
A boy of height 1m 45 cm is standing in front of a long mirror at a distance of 2 m. From this information, fill up the following sentences:
- The distance between the boy and his image is ______
- The height of the image is______
- When the boy moves 1m forward, the distance between her and her image is______
Calculate the number of images formed by plane mirrors kept at an angle of 10° to each other.
Distinguish between real & virtual images.
A concave lens produces only ______ image.
