Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
Explain optical centre of a lens with the help of proper diagram(s).
The diagram below shows a lens as a combination of a glass slab and two prisms.
- Name the lens formed by the combination.
- What is the line XX’ called?
- Complete the path of the incident ray AB after passing through the lens.
- The final emergent ray either meets XX’ at a point or appears to come from a point on XX’. Label it as F. What is this point called?
In figure, (a) and (b), F1 and F2 are the two foci of thin lenses and AB is the incident ray. Complete the diagram to show the path of the ray AB after refraction through each lens.
 |
| (a) |
 |
| (b) |
Distinguish between a real and a virtual image.
Study the diagram shown in Fig. 5.56
what are the two other characteristics of the image?
A ray of light incident parallel to the principal axis of a lens, passes undeviated after refraction.
Define the term focus of a lens.
Name the subjective property of light related to its wavelength.
State the nature and position of the object on the principal axis to obtain a real and magnified image.
