Advertisements
Advertisements
प्रश्न
In the diagram below, XX’ represents the principal axis, O the optical centre and F the focus of the lens. Complete the path of rays A and B as they emerge out of the lens.
 |
 |
| (a) | (b) |
Advertisements
उत्तर
The path of rays A and B as they emerge out of the lens is shown.
 |
 |
| (a) | (b) |
APPEARS IN
संबंधित प्रश्न
In the following figure (a) and (b), F1 and F2 are positions of the two foci of thin lenses. Draw the path taken by the light ray AB after it emerges from each lens.
 |
| (a) |
 |
| (b) |
Distinguish between a real and a virtual image.
State the condition of the following:
A ray passes undeviated through the lens.
In the following diagram ., the object and the image formed by the respective lenses are shown. Complete the ray diagram, and locate the focus. Find the focal length of the lens.
Make the correct choices in the following items:
lf the image can be focused on a screen it must be
Make the correct choices in the following items :
The image formed by a diverging lens, shown in fig, , is
Define the term focus of a lens.
When does a ray of light falling on a lens pass through it undeviated?
In the following diagram, L1 and L2 are the two convex lense placed at separation equal to the sum of focal lengths of the two lenses. A and B are the two rays of light incident on the lens L1. Complete the path of rays till they emerge out of the lens L2.
What principles have you used in completing the diagram?
Mixture of red + blue + green is passed through a convex lens as shown in the diagram below. State whether the ray passes through a single point or through different points on the principal axis after refraction.
