Advertisements
Advertisements
प्रश्न
A stick partly immersed in water appears to be bent. Draw a ray diagram to show the bending of the stick when placed in water and viewed obliquely from above.
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
Define the power of a lens.
Which has more power : a thick convex lens or a thin convex lens, made of the same glass? Give reason for your choice.
The optician's prescription for a spectacle lens is marked +0.5 D. What is the:
(a) nature of spectacle lens?
(b) focal length of spectacle lens?
A doctor has prescribed a corrective lens of power, −1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging?
State the condition for the following a ray passes undeviated through the lens .
The power of a lens is + 1.0 D is :
A thin converging lens is formed with one surface convex and the other plane. Does the position of image depend on whether the convex surface or the plane surface faces the object?
A screen is placed a distance 40 cm away from an illuminated object. A converging lens is placed between the source and the screen and its is attempted to form the image of the source on the screen. If no position could be found, the focal length of the lens
How is accommodation produced?
A point object is placed at O in front of a glass sphere as shown in figure.
Show the formation of the image by the sphere.
