1.
Usually, lenses are coated with what?
Correct Answer
A. Magnesium fluoride
Explanation
Lenses are usually coated with magnesium fluoride. This coating helps to reduce reflections and increase the amount of light that passes through the lens, resulting in improved image quality. Magnesium fluoride is a commonly used material for lens coatings due to its high transparency to visible light and its ability to withstand the harsh conditions of lens manufacturing and use.
2.
'Camera' is a word of which origin?
Correct Answer
B. Latin
Explanation
The word "camera" is of Latin origin. Latin is the language from which many modern languages, including English, Spanish, and Greek, have borrowed numerous words. In Latin, "camera" means "vaulted room" or "chamber." Over time, the meaning of the word evolved, and it is now commonly used to refer to a device used for taking photographs or recording videos.
3.
When was the world's first all electric photographic studio opened?
Correct Answer
C. 1877
Explanation
In 1877, the world's first all electric photographic studio was opened. This suggests that prior to this year, photographic studios were not fully powered by electricity. This development would have had a significant impact on the photography industry, allowing for more efficient and advanced techniques to be used. It also indicates the progress and innovation that was occurring in the late 19th century.
4.
The term 'Photography' was coined by who?
Correct Answer
A. Sir John Herschel
Explanation
Sir John Herschel is credited with coining the term "Photography." He was an English mathematician, astronomer, and chemist who made significant contributions to the field of photography. In 1839, he suggested the word "Photography" to describe the process of capturing images using light and chemicals. His suggestion was widely accepted, and the term has been used ever since to refer to the art and science of creating images through the use of a camera.
5.
What does a photon mean?
Correct Answer
A. A particle of light energy
Explanation
A photon refers to a particle of light energy. Photons are the fundamental units of light and are responsible for carrying electromagnetic radiation. They have properties of both particles and waves, and their energy is directly proportional to their frequency. Photons play a crucial role in various phenomena such as the photoelectric effect and the emission and absorption of light by atoms.
6.
Kodachrome requires which processing?
Correct Answer
B. Subtractive
Explanation
Kodachrome requires subtractive processing. Subtractive processing is a color process that involves removing or subtracting certain colors from the original image to create the final result. In the case of Kodachrome, this process involves removing the cyan, magenta, and yellow dyes from the film to leave only the color information recorded in the form of a positive image. This subtractive process is different from additive processes, such as RGB, where colors are added together to create the final image.
7.
Which of the following perfectly explains posterization?
Correct Answer
A. Extreme tone separation
Explanation
Posterization refers to the effect where an image loses its smooth gradient and instead has distinct, abrupt transitions between tones. This can occur when the number of colors or shades in an image is reduced, resulting in a limited range of tones. Extreme tone separation perfectly explains posterization as it refers to the extreme contrast between different tones in an image, creating a poster-like effect with clearly defined areas of different colors or shades.
8.
Colour film should be developed at what temperature?
Correct Answer
B. 100 degrees celsius
Explanation
Color film should be developed at 100 degrees Celsius because this temperature allows the chemicals in the film to react properly and produce accurate and vibrant colors. Developing the film at a higher or lower temperature can result in color shifts or inconsistencies in the final image. Therefore, maintaining a temperature of 100 degrees Celsius ensures optimal development and accurate color reproduction.
9.
'Magic lantern' means what?
Correct Answer
A. A slide projector
Explanation
A magic lantern is a device used to project images from photographic slides onto a larger screen or surface. It consists of a light source, a lens system, and a slide holder. The slides are inserted into the lantern and when the light passes through them, the images are projected. Therefore, a magic lantern is essentially a slide projector.
10.
Which of the following is Baryta used in?
Correct Answer
A. Fibre based prints
Explanation
Baryta is commonly used in fibre-based prints. Baryta is a compound of barium sulfate that is applied as a coating on the paper used for printing photographs. This coating enhances the sharpness, tonal range, and overall quality of the print. It also helps in preventing the ink from bleeding or spreading on the paper, resulting in a more precise and detailed image. Therefore, baryta is an essential component in the production of high-quality fibre-based prints.