गज़ब का Illusion/Illusive park in Paris/ #Shorts

Ingestion of marijuana leads to illusions and alters the thoughts, feeling and perception of a person. Marijunana is a:

Ingestion of marijuana leads to illusions and alters the thoughts, feelings and perceptions of a person. Marijiuana is a OR Addiction of LSD will eventually leads to

An illusion of the appearance of water on a hot road or in a desert is an example of dispersion of light. True/false

An optica illusion which occurs mainly in deserts during ltbgt hot summer is based on the principle of

Two spherical concave mirrors of equal focal length are put against each other with their reflecting surfaces facing each other. The upper mirror has an opening at its centre. A small object (O) is kept at the bottom of the cavity so formed (see Figure). The top mirror produces a virtual image of the object and the lower mirror then creates a real image of the virtual image. The second image is created just outside the cavity mouth. This creates an optical illusion as if the object is raised above its original position. (a) Prove that the height h shown in the Figure is related to focal length of the mirror as (1)/(f) = (1)/(h) + (1)/(h+((1)/(h)-(1)/(f))^(-1)) (b) Rewrite the above equation in terms of x = (h)/(f) and solve if for x.

If A and B are disjoint then the illusations of A - B in a Venn diagram is

On a hot sunny day in deserts, illusion of water is seen at some distance. Explain.