Rules for Ray Diagrams of Convex Lens

Q. Which of the following ray diagram is correct for the ray of light incident on a lens as shown in figure 1?

1. Fig. A.
2. Fig. B.
3. Fig. C.
4. Fig. D.

Q. Which lens should be used to burn a piece of paper?

1. Glass slab
2. Biconvex lens
3. Biconcave lens
4. Plano-concave lens

Q. Which of the following ray diagram is correct for the ray of light incident on a lens as shown in figure 1?

1. Fig. A.
2. Fig. B.
3. Fig. C.
4. Fig. D.

Q.

Question 17
Which of the following ray diagram is correct for the ray of light incident on a lens as shown in figure 1?


(a) Fig. A.
(b) Fig. B.
(c) Fig. C.
(d) Fig. D.

Q.

Question 17
Which of the following ray diagram is correct for the ray of light incident on a lens as shown in figure 1?


(a) Fig. A.
(b) Fig. B.
(c) Fig. C.
(d) Fig. D.

Q. AB is an object and A'B' is its image. Then, match the following with the object distance. f: focal length.

1. $|u|=2f$
2. $|u|>2f$
3. $|u|<f$

Q. The point of the lens through which a ray passes without any deviation is known as the .

1. principal focus
2. optical centre
3. centre of curvature

Q. Minimum number of rays required to form an image of an object using a convex lens are ___.

1. 5
2. 3
3. 4
4. 2