Cluster · Optics and Vision Correction
| Question | Category | Subtype | Difficulty | |
|---|---|---|---|---|
|
What is the principal focus of a spherical mirror? pipeline-828599
|
science | — | intermediate | |
|
What is the size of the image formed by a plane mirror with respect to the object? pipeline-829035
|
science | — | intermediate | |
|
Hypermetropia can be corrected by using: [RRB NTPC CBT] pipeline-1184027
|
science | — | intermediate | |
|
How many eyes does a bee have? [SSC CGL 2021] pipeline-1184193
|
science | — | intermediate | |
|
Near-sightedness in humans is called: [RRB NTPC CBT] pipeline-1184074
|
science | — | intermediate | |
|
The minimum distance of distinct vision for a young adult person with no defect in eyes is: [SSC CHSL 2023] pipeline-1183662
|
science | — | intermediate | |
|
Excessive curvature of eye lens leads to _______ [RRB NTPC CBT] pipeline-1183671
|
science | — | intermediate | |
|
The minimum distance of distinct vision for a young adult person with no defect in eyes is: [RRB NTPC CBT] pipeline-1183641
|
science | — | intermediate | |
|
For a person with Hypermetropia or far-sightedness, the near point is_________ farther away from the normal near point. [RRB NTPC CBT] pipeline-1183660
|
science | — | intermediate | |
|
The lens which is thin in the middle and thick at its periphery is called a. [RRB NTPC CBT] pipeline-1179926
|
science | — | intermediate | |
|
Which type of mirrors are commonly used in torches, searchlights and vehicle headlights to get powerful parallel beams of light? [RRB NTPC CBT] pipeline-1179919
|
science | — | intermediate | |
|
What will be the focal length of a convex lens with the power of a +2.5 Diopter? [RRB NTPC CBT] pipeline-1179928
|
science | — | intermediate | |
|
The power of a lens is -2.0 D. Here 'D' stands for: [SSC CGL 2019] pipeline-1179922
|
science | — | intermediate | |
|
Raman wants to use a rear-view mirror in his vehicle. Which type of mirror should he pick for it? [SSC CHSL 2022] pipeline-1179929
|
science | — | intermediate | |
|
What is the unit of measurement for optical power of the lens ? [SSC CGL 2024] pipeline-1179921
|
science | — | intermediate | |
|
Which mirror is used for shaving purposes ? [RRB NTPC CBT] pipeline-1179930
|
science | — | intermediate | |
|
An image which can be obtained on a screen is called a _____________. [SSC MTS 2022] pipeline-1179888
|
science | — | intermediate | |
|
Which type of mirror is used by dentists to see large images of patients' teeth? [RRB NTPC CBT] pipeline-1179884
|
science | — | intermediate | |
|
If a lens has a focal length of 25 cm, what will be the power of that lens? [RRB NTPC CBT] pipeline-1179911
|
science | — | intermediate | |
|
Raman wants to use a rear-view mirror in his vehicle. Which type of mirror should he pick for it ? [RRB NTPC CBT] pipeline-1179899
|
science | — | intermediate | |
|
The center of the reflecting surface of a spherical mirror is a point called: [RRB NTPC CBT] pipeline-1179914
|
science | — | intermediate | |
|
Which among the following represents the Lens formula? [RRB NTPC CBT] pipeline-1179894
|
science | — | intermediate | |
|
Which lens will be suitable for a myopic person? [RRB NTPC CBT] pipeline-1179891
|
science | — | intermediate | |
|
An image which cannot be obtained on a screen is called a__________ [SSC MTS 2022] pipeline-1179895
|
science | — | intermediate | |
|
Which of the following is used in solar cookers ? [SSC CHSL 2023] pipeline-1179878
|
science | — | intermediate | |
|
An image formed by the convex mirror is always_________. [SSC CHSL 2022] pipeline-1179871
|
science | — | intermediate | |
|
Which type of mirror is used by dentists to see large images of patients’ teeth? [RRB NTPC CBT] pipeline-1179915
|
science | — | intermediate | |
|
A concave spherical mirror has a radius of curvature of 30 cm. An object was placed 15 cm away from the pole in front of the mirror on the principal axis. Choose the correct option for the position, size and nature of the image formed, respectively. [RRB NTPC CBT] pipeline-1179893
|
science | — | intermediate | |
|
Which part of the bifocal lens facilitates near vision ? [SSC CPO 2024] pipeline-1179889
|
science | — | intermediate | |
|
Which type of lens is required for correcting the vision of a person with myopia? [RRB NTPC CBT] pipeline-1179892
|
science | — | intermediate | |
|
A small object is placed on the focus on the left side of a convex lens. Where will be the image formed? [SSC CGL 2024] pipeline-1179872
|
science | — | intermediate | |
|
In optics, which term refers to the opening of the diaphragm of a lens that spatially limits the propagation of light ? [SSC MTS 2023] pipeline-1179901
|
science | — | intermediate | |
|
Which of the following can produce a virtual image larger than the object? [RRB NTPC CBT] pipeline-1179881
|
science | — | intermediate | |
|
In optics, which term refers to the opening of the diaphragm of a lens that spatially limits the propagation of light ? [RRB NTPC CBT] pipeline-1179875
|
science | — | intermediate | |
|
The SI unit of power of the lens is ________. [SSC MTS 2022] pipeline-1179870
|
science | — | intermediate | |
|
What is the SI unit of power of a lens called? [RRB NTPC CBT] pipeline-1179905
|
science | — | intermediate | |
|
Which kind of mirror is used as rear view wing mirrors in vehicles? [RRB NTPC CBT] pipeline-1179882
|
science | — | intermediate | |
|
Stereo images are commonly used for....... [UPASI 04.12.2021 (Shift-II)] pipeline-1315362
|
computer | — | intermediate | |
|
Who among the following made the first compound microscope? [RRB NTPC CBT] pipeline-1180276
|
gk | — | intermediate | |
|
Which statement is true for a concave lens? pipeline-629978
|
reasoning | — | intermediate | |
|
An object is placed on the principal axis of a convex lens with a focal length of 20 cm. The distance of the object from the lens is 30 cm. Find the position of the image formed. pipeline-14324
|
reasoning | — | intermediate | |
|
For which situation does a convex lens always form a virtual image? pipeline-629976
|
reasoning | — | intermediate | |
|
Which type of mirror is used in a dental mirror to see a magnified view of teeth? pipeline-652611
|
reasoning | — | intermediate | |
|
Which type of mirror is generally used in the headlight of the vehicle? pipeline-10571
|
reasoning | — | intermediate | |
|
Which of the following lenses would converge parallel rays of light to a point? pipeline-629977
|
reasoning | — | intermediate | |
|
Find the power of a concave lens of focal length 5m. pipeline-12917
|
reasoning | — | intermediate | |
|
Why does a concave lens always produce a diminished image regardless of the position of the object? pipeline-629972
|
reasoning | — | intermediate | |
|
What is the main difference between a positive lens and a negative lens? pipeline-629979
|
reasoning | — | intermediate | |
|
Which of the following is an example of a concave lens? pipeline-12740
|
reasoning | — | intermediate | |
|
What happens to the focal length of a lens when it is immersed in a medium with a refractive index higher than that of the lens material? pipeline-629971
|
reasoning | — | intermediate |