Ray Diagrams for Convex Lens

Q. What is the nature of the image formed when an object is kept between the focus and the optical centre of a convex lens?

1. Real and inverted
2. Virtual and erect
3. Real and erect
4. Virtual and inverted

Q. A ray of light from the object, parallel to the principal axis, after refraction from a convex lens, passes through ___.

1. the principal focus on the same side of the lens
2. the centre of curvature on the same side of the lens
3. the principal focus on the other side of the lens
4. the centre of curvature on the other side of the lens

Q.

A light ray passing through focus hits a convex lens. After that, it hits another lens and finally passes through the principal axis. Which kind of lens is used?
Note: Principal axis of both the lenses coincides.

1. Cylindrical lens

2. Convex lens

3. Concave lens

4. Concavo Plane lens

Q. Choose the correct ray diagram for the given incident ray.

1. 
2. 
3. 
4. 

Q.

The ray diagram showing the correct path of the ray after passing through the lens is:

1. II and III only
2. I, II and IV
3. I and II only
4. I, II and III

Q. Choose the correct ray diagram for the given incident ray.

1. 
2. 
3. 
4. 

Q. Draw ray diagrams showing the image formation by a convex lens when an object is placed at twice the focal length of the lens.

Q.

In case of a lens, a light ray passes through ___ without undergoing any deviation.

1. optic centre

2. focus

3. centre of curvature

4. focal length

Q.
Towards which point should the incident light ray be directed, so that the ray passes undeviated?

1. C
2. B
3. O
4. A

Q. A ray of light passing through a principal focus, after refraction from a convex lens ___.

1. will emerge at an angle of ${45}^0$ to the principal axis
2. will emerge perpendicular to the principal axis
3. will emerge parallel to the principal axis
4. will emerge undeviated

Q. A light ray passing through a spherical lens undergoes refractions.

1. two
2. one
3. four

Q.

If $F_1$ and $F_2$ represents the foci of the lens, then at which point will the light rays meet?

1. $F_1$

2. $2F_1$

3. $F_2$

4. $2F_2$

Q. Identify the optical object XX' used based on the ray diagram shown.


[0.8 mark]

1. Concave mirror
2. Convex mirror
3. Concave lens
4. Convex lens

Q.

Parallel rays of light entering a convex lens converge at:

1. Principal focus

2. Secondary focus

3. Centre of curvature

4. Optical centre

Q.

If a ray passing through the focus gets refracted by a convex lens, where will it intersect the principal axis?

1. At focus on the other side.

2. At the pole of the lens.

3. At double the focal length on the other side.

4. Does not intersect at all.