Question 1

Which of the following consist of small, tubular, quartz envelopes in which vapor is produced under a pressure of several atmospheres?&#10;A) Arc vapor lamps&#10;B) Mercury vapor lamps&#10;C) Electronic vapor lamps&#10;D) Electronic flash lamps

Accepted Answer

Mercury vapor lamps consist of small, tubular, quartz envelopes in which vapor is produced under a pressure of several atmospheres.

Question 2

Which of the following is a gas regularly found in an electronic flash lamp?&#10;A) Hydrogen&#10;B) Krypton&#10;C) Carbon Dioxide&#10;D) Propane

Accepted Answer

Krypton is often used in electronic flash lamps because of its high luminous efficacy and ability to emit bright light in a short amount of time. Hydrogen, carbon dioxide, and propane are not commonly used in this application.

Question 3

Ultraviolet photography is usually performed _________________ to control illumination conditions.&#10;A) Indoors&#10;B) At high altitude&#10;C) Below sea level&#10;D) With digital cameras only

Accepted Answer

Ultraviolet photography is usually performed indoors to control illumination conditions, as sunlight (especially at high altitude or below sea level) can interfere with the UV spectrum and cause inaccurate results. Digital cameras can be used for this type of photography, but it is not a requirement.

Question 4

If luminescence ceases within a very short time after exciting radiation is removed, the phenomenon is called:&#10;A) Fluorescence&#10;B) Lightning&#10;C) Illuminating Biospheres&#10;D) Irradiating Light

Accepted Answer

Fluorescence is the phenomenon where luminescence ceases shortly after the exciting radiation is removed. The other options are not related to this phenomenon.

Question 5

At least two distinct types of filters are used in fluorescent photography, an exciting filter and:&#10;A) A Roethlisberger filter&#10;B) A Barrier filter&#10;C) An Impediment filter&#10;D) A Blockade filter

Accepted Answer

A Barrier filter is typically used in fluorescent photography to block out any excitation light that has not been absorbed by the sample, allowing for clearer images with less background interference. Options A, C, and D are not typically used in this context.

Question 6

Dermatologists have long used which photographic technique, during examinations of patients to detect skin cancers?&#10;A) Refractive photography&#10;B) Pensive ultraviolet photography&#10;C) Flexible photography&#10;D) Reflective ultraviolet photography

Accepted Answer

Reflective ultraviolet photography, also known as ultraviolet fluorescence photography, is commonly used by dermatologists to detect skin cancers. This technique involves shining a special type of ultraviolet light on the skin, which causes certain abnormal cells to fluoresce, or emit a different color of light. These abnormal cells can then be better detected and diagnosed as potential skin cancers.

Question 7

Most digital cameras have an internal IR cut filter built into the body called a:&#10;A) Proton&#10;B) Casting&#10;C) Buffer zone&#10;D) Hot mirror

Accepted Answer

The correct term for the internal filter in a digital camera that blocks infrared light is a "hot mirror." This is because the filter reflects (or "bounces back") the infrared light like a mirror while allowing visible light to pass through to the camera's sensor. The other choices (proton, casting, buffer zone) are not related to IR cut filters.

Question 8

Sunlight is probably the most common source of ultraviolet radiation.

Accepted Answer

Sunlight contains UV radiation in the form of UV-A, UV-B, and UV-C, although the majority of UV-C is filtered out by the Earth's atmosphere before it reaches the surface. UV radiation can also be emitted by artificial sources such as tanning beds and black lights.

Question 9

Carbon arc lamps are one of the best types of lamps most suitable for ultraviolet photography.

Accepted Answer

The answer of Carbon arc lamps are one of the...

Question 10

One plus of ultraviolet radiation is that it can be seen by the naked eye, as opposed to similar photography methods which cannot.

Accepted Answer

Ultraviolet radiation cannot be seen by the naked eye. It is a form of electromagnetic radiation that has a wavelength shorter than visible light but longer than X-rays. It can only be detected using specialized equipment, such as a blacklight.

Question 11

The main purpose of UV photography is to obtain information about an object or material that cannot be obtained by other photographic methods.

Accepted Answer

The answer of The main purpose of UV photography is...

Question 12

Ultraviolet photography is usually performed by using reflected radiation.

Accepted Answer

The answer of Ultraviolet photography is usually performed by using...

Deck 10: Ultraviolet and Infrared Imaging