Question:
A convex lens gives an image of the same size of the object when the object is placed
A convex lens gives an image of the same size of the object when the object is placed
Updated On: June 02, 2025
- between the focal point and the centre of curvature
- between the focal point and the optic centre
- beyond the centre of curvature
- at the centre of curvature
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
A convex lens forms an image of the same size as the object when the object is placed at a distance equal to twice the focal length from the lens. This distance is known as the centre of curvature or 2F.
When the object is placed at the centre of curvature (2F), the image is:
- Real
- Inverted
- Same size as the object
- Formed at the centre of curvature on the other side of the lens
Answer: at the centre of curvature
Was this answer helpful?
0
0
Top Questions on Optical Instruments
- A microscope has an objective of focal length \(f_o = 2\) cm and an eyepiece of focal length \(f_e = 4\) cm. The tube length of the microscope is \(L = 40\) cm. If the distance of distinct vision of eye is \(D = 25\) cm, the magnification in the microscope is:
- NEET (UG) - 2025
- Physics
- Optical Instruments
- A concave mirror has a focal length of 20 cm. An object is placed 60 cm in front of the mirror. Find the image distance.
- MHT CET - 2025
- Physics
- Optical Instruments
- The eye defect astigmatism can be corrected by using a
- KEAM - 2025
- Physics
- Optical Instruments
- The clarity of the image formed on the retina of the eye depends on the ____
- MHT CET - 2025
- Physics
- Optical Instruments
- In normal adjustment, for a refracting telescope, the distance between the objective and eyepiece lens is 1.00 m. If the magnifying power of the telescope is 19, find the focal length of the objective and the eyepiece lens.
- CBSE CLASS XII - 2024
- Physics
- Optical Instruments
View More Questions
Questions Asked in AP POLYCET exam
- If assumed mean of a data is 47.5, \( \sum f_i d_i = 435 \) and \( \sum f_i = 30 \), then mean of that data is:
- AP POLYCET - 2025
- Arithmetic Mean
- A prime number \( p \) divides \( a^2 \) where \( a \) is a positive integer, then
- AP POLYCET - 2025
- Prime and Composite Numbers
- A pair of linear equations \( a_1 x + b_1 y + c_1 = 0 \) and \( a_2 x + b_2 y + c_2 = 0 \) is such that \( \frac{a_1}{a_2} \neq \frac{b_1}{b_2} \), then they are:
- AP POLYCET - 2025
- Linear Equations
- Area of a sector of a circle with radius 4 cm and angle 30° is (use \( \pi = 3.14 \)):
- Two cars are seen from the top of a tower of height 75 m with angles of depression \(30^\circ\) and \(45^\circ\). If the cars are on opposite sides of the tower along the same line, the distance between them is:
- AP POLYCET - 2025
- Heights and Distances
View More Questions
