Advertisements
Advertisements
प्रश्न
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
At which point of the spherical mirror the carbon paper is placed?
Advertisements
उत्तर
The carbon paper was kept at the focus of the spherical mirror.
APPEARS IN
संबंधित प्रश्न
Explain the following term related to spherical lenses:- aperture
We can obtain an enlarged and erect image by a convex mirror.
A concave mirror always forms a real image.
Find out the letters of English alphabet or any other language known to you in which the image formed in a plane mirror appears exactly like the letter itself. Discuss your findings.
A ray of light is incident normally on a plane mirror. What will be the
angle of reflection?
Define (a) centre of curvature (b) radius of curvature (c) pole (d) principal axis, and (e) aperture, of a spherical mirror with the help of a labelled diagram
Write the mirror formula. Give the meaning of each symbol which occurs in it.
What do you mean by the term dispersion?
State the kind of mirror used
(a) by a dentist, and
(b) as a street light reflector.
Name the spherical mirror which (i) diverges (ii) converges the beam of light incident on it. Justify your answer by drawing a ray diagram in each case.
Name the mirror which always produces an erect and virtual image. How is the size of image related to the size of object?
State two uses of a concave mirror.
A real and enlarged image can be obtained by using a
A concave mirror forms a virtual image of size twice that of the object placed at a distance 5 cm from it.
Find : (a) the focal length of the mirror (b) position of image
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
What is the focal length (f) of a mirror?
