Holography is a technique of A. Recording a permanent, sharp two diimensional black and white or multicolour photograph B. Recording a permanent three dimensional multicolour photograph C. Recording a permanent three dimensional black and white photograph D. Recording a permanent three dimensional photograph of a given single colour or a multicolour

The correct answer is: B. Recording a permanent three dimensional multicolour photograph

Holography is a technique of recording, storing and retrieving the light waves scattered from an object. Unlike a conventional photograph, which captures only the intensity of light at each point, a hologram records both the amplitude and phase of the light wave. This allows a hologram to be reconstructed into a three-dimensional image when illuminated with light of the same wavelength as the light used to record it.

Holography can be used to create three-dimensional images of objects, scenes, or even people. It can also be used to create security features, such as those found on credit cards and driver’s licenses.

A hologram is a permanent record of the light waves scattered from an object. This means that it can be viewed multiple times without losing its quality. Holograms are also very resistant to damage, making them ideal for use in applications where durability is important.

Holography is a fascinating and versatile technique that has a wide range of applications. It is a relatively new technology, but it has already had a significant impact on many industries. As the technology continues to develop, it is likely to have an even greater impact in the future.

Here is a brief explanation of each option:

• Option A: Recording a permanent, sharp two dimensional black and white or multicolour photograph. This is not correct because holography is a technique of recording three-dimensional images.
• Option B: Recording a permanent three dimensional multicolour photograph. This is the correct answer because holography can be used to create three-dimensional images of objects, scenes, or even people.
• Option C: Recording a permanent three dimensional black and white photograph. This is not correct because holography can be used to create three-dimensional images in color.
• Option D: Recording a permanent three dimensional photograph of a given single colour or a multicolour. This is not correct because holography can be used to create three-dimensional images of objects, scenes, or even people in any color.