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What are good questions to ask about optical illusions?
Questions asked about optical illusions; 1: What are optical illusions? 2: What types of optical illusions are there? 3: What effects do optical illusions have on the brain 4: What causes optical illusions?
What is the difference between a mirage and an optical illusion?
All mirages are optical illusions but all optical illusions are not mirages.
Where was optical art started?
Optical art was not restricted to just one country. Optical artists were situated in America and the UK
When was Kerner Optical created?
Kerner Optical was created in 2006-08.
What are examples of optical reader?
Type your answer here... what is example of optical reader
Why are optical isomers not found in CH2ClBr?
Optical isomers are found only if there is chiral centre. There is no chiral centre in CH2ClBr due to the presence of two hydrogens on a single carbon.
What is distance of principal focus from optical centre called?
Focal length
Where is the optical center of a Kryptok 22 lens?
It's in the centre of a round segment!
What is optical center of a lens?
optic centre is the geometrical centre of the lens the rays of light passing through this point emerges in the same direction without bending.
What is called optical center of a lens?
optic centre is the geometrical centre of the lens the rays of light passing through this point emerges in the same direction without bending.
Can a lens have it's optical centre outside the lens?
Yes, it can.
When a ray of light passing through a point in a lens does not undergo deviation?
When it passes through optical centre.
Why is it possible to simplify the number of actual refractions in a lens down to one refraction at a central line through the optical centre?
There are a few reasons why it is possible to simplify the number of actual refractions in a lens down to one refraction at a central line through the optical centre. One reason is that when light passes through a lens, the lens refracts the light in such a way that the light is brought to a focus. The amount of refraction that occurs depends on the curvature of the lens and the index of refraction of the lens material. However, no matter how curved the lens is, the amount of refraction is always the same at the optical centre of the lens. This is because the optical centre is the point on the lens where the light rays passing through the lens are parallel to the principal axis of the lens. Another reason why it is possible to simplify the number of actual refractions in a lens down to one refraction at a central line through the optical centre is that when a lens is rotated about its optical axis, the image formed by the lens does not rotate. This is because the optical centre of a lens is invariant with respect to rotation. This means that it is not necessary to take into account the actual refractions that occur at different points on the lens when calculating the image formation by the lens.
What is the ratio of focal length of a spherical mirror to its radius curvature?
The focal point of a convex mirror lies on the same side as the centre of curvature and is at a distance of half the radius of curvature from the optical centre.
What is optical center of lens?
The optical center of the lens is a point on the axis of a lens is the point where any ray passing through this point, the incident part and the emergent part are parallel. It is important for the proper refraction of light.
Why the a ray passing through center of lens do not bends?
It is because the central portion of the lens i.e. optical centre can be considered similar to a parallel sided glass slab.
Why ray does not refract when it passes through optical centre?
It does. But when the ray arrives perpendicular to the boundary, the angle of incidence and the angle of refraction are both zero, so its direction doesn't change.
