Question:
An object is placed at the principal focus of a concave lens of focal length 10 cm. The image will be formed at___ cm, between the optical center and the focus of the lens on the same side of the object.
An object is placed at the principal focus of a concave lens of focal length 10 cm. The image will be formed at___ cm, between the optical center and the focus of the lens on the same side of the object.
Updated On: Oct 1, 2024
Hide Solution
Verified By Collegedunia
Correct Answer: 5
Solution and Explanation
The Correct Answer is: 5
Was this answer helpful?
0
0
Top Questions on spherical lenses
- A small telescope has an objective of focal length 140 cm and an eye piece of focal length 5.0 cm. The magnifying power of telescope for viewing a distant object is :
- NEET (UG) - 2024
- Physics
- spherical lenses
- A glass beaker has a solid, plano-convex base of refractive index 1.60, as shown in the figure. The radius of curvature of the convex surface (SPU) is 9 cm, while the planar surface (STU) acts as a mirror. This beaker is filled with a liquid of refractive index n up to the level QPR. If the image of a point object O at a height of β (OT in the figure) is formed onto itself, then, which of the following option(s) is(are) correct?
- JEE Advanced - 2024
- Physics
- spherical lenses
- A biconvex lens of refractive index 1.5 has a focal length of 20 cm in air. Its focal length when immersed in a liquid of refractive index 1.6 will be:
- JEE Main - 2024
- Physics
- spherical lenses
- Radius of curvature of equiconvex lens is 20 cm. Material of lens is having refractive index of 1.5. Find image distance from lens if an object is placed 10 cm away from the lens.
- JEE Main - 2024
- Physics
- spherical lenses
- A point object is moving at a constant speed of 1 ms-1 along the principal axis of a convex lens of focal length 10cm. The speed of the image is also 1 ms-1 , when the object is at _______ cm from the optic centre of the lens.
- KCET - 2023
- Physics
- spherical lenses
View More Questions
Questions Asked in IIT JAM BT exam
- A box of mass 20 ππ is pulled at constant speed across a floor by a rope. The rope makes an angle of 45Β° with the horizontal. Assuming that friction is negligible, the work done in pulling the box by a distance of 20 π is _____ π½ (rounded off to the nearest integer). (Use $π = 9.8 ππ ^{β2}$)
- IIT JAM BT - 2024
- Friction
- The value of $\lim_{π₯β3}\frac{(π₯^2 β9)}{(π₯^2β4π₯+3 )} $ is (rounded off to the nearest integer).
- IIT JAM BT - 2024
- Limits and derivations
- Which one of the following statements about polyploidy is correct?
- IIT JAM BT - 2024
- Genetics
- A ball dropped from a bridge hits the surface of the water in 3 π . The height of the bridge, ignoring air resistance, is ___ π (rounded off to one decimal place). (Use $π = 9.8 ππ ^{β2}$)
- IIT JAM BT - 2024
- Motion in a plane
- The restriction map of a circular plasmid is shown below, along with the indicated distances between the restriction sites.
The plasmid was completely digested with EcoRI, and XhoI. The products were analysed by agarose gel electrophoresis followed by ethidium bromide staining. The number of bands that will be visible in the gel when exposed to UV light is __________.- IIT JAM BT - 2024
- Biotechnology
View More Questions