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प्रश्न
Draw a labelled ray diagram to show how a ray of light is refracted when it passes:
from air into an optically denser medium.
उत्तर
Refraction of light ray when it passes from air to an optically denser medium:
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संबंधित प्रश्न
Which of the following lenses would you prefer to use while reading small letters found in a dictionary?
Fill in the following blank with suitable word:
Parallel rays of light are refracted by a convex lens to a point called the ........
Name one simple optical instrument in which the above arrangement of convex lens is used.
In figure , name the ray which represents the correct path of light while emerging out through
a glass block.
Out of the five incident rays shown in the figure find the three rays that are obeying the laws of refraction and may be used for locating the position of image formed by a convex lens:
(A) 1, 2 and 3
(B) 2, 3 and 4
(C) 3, 4 and 5
(D) 1, 2 and 4
An object 4.0 cm in size, is placed 25.0 cm in front of a concave mirror of focal length 15.0 cm.
(i) At what distance from the mirror should a screen be placed in order to obtain a sharp image?
(ii) Find the size of the image.
(iii) Draw a ray diagram to show the formation of the image in this case.
Out of the two lenses one concave and the other convex state which is a convergent or a divergent type of a lens. Give a reason for your answer.
A beam of light is incident through the holes on side A and emerges out of the holes on the other face of the box as show in the figure. Which of the following could be inside the box?
Distinguish between:
Concave lens and Convex lens
