Image Formation by Convex Lens
Identify the condition in which image formed is real, inverted and diminished from the following.
Convex lens, object placed beyond 2F1
Concave lens, object placed between focus and optical centre
Convex lens, object placed between F1 and 2F1
Concave mirror, object placed between centre of curvature and focus
Answer the following questions based on the given details.
iv. What will be the characteristic of the image when the object is placed at a distance of 21 cm from the lens?
- Enlarged, real, and inverted
- Enlarged, virtual, and erect
- Diminished, real, and inverted
- Same size, real, and inverted
A convex lens of very large focal length will make?
higher divergence of light rays
lesser divergence of light rays
lesser convergence of light rays
higher convergence of light rays
Identify the condition, which will form a real, inverted and equal sized image of the object.
concave lens, object placed between focusF1 & pole O.
convex lens, object placed at 2F1
convex lens, object placed beyond 2F1
convex lens, object placed between F1and 2F1
The centre of curvature of a convex lens is at 40 cm and its central portion is wrapped in black paper as shown below. If an object is placed at 90 cm, find the nature of image formed.
The intensity of the image formed will increase.
The Image formed will be diminished.
The intensity of the image formed will decrease.
Image will not be formed.
For the object placed between the optical centre and focus of a convex lens, the image formed is:
real and enlarged
real and diminished
virtual and enlarged
virtual and diminished
If AB is an object and A'B' is an image formed, then match the following.
1 - A, 2 - C, 3 - A, 4 - B
1 - D, 2 - C, 3 - A, 4 - B
1 - A, 2 - C, 3 - B, 4 - D
1 - C, 2 - A, 3 - A, 4 - B
A Convex lens always forms a real image.
What is the nature of the lens and the position of the object if the image formed is of the same size as that of the object?
concave lens, at 2F1
convex lens, at F1
convex lens, at 2F1
concave lens, at F1
Identify the condition, which will form enlarged, virtual and erect image?
Convex lens, object placed beyond 2F1.
Concave lens, object placed beyond centre of curvature.
Convex lens, object placed between F1 and optical centre O.
Convex lens, object placed between F1 and 2F1.