Is there any way to make diamond flouresce in the visible or near IR region?

Is there any way to make diamond flouresce in the visible or near IR region?
by

1 Answer

Answer :

Here is article by GIA (Gem Institute of America) it is UV activated.
by

Related questions

Rerout an IR signal to a receiver from a remote?

Description : Rerout an IR signal to a receiver from a remote?

Last Answer : answer:Yes! You need an infrared repeater like this one or you can set up a series of mirrors to redirect the signal.

Can anyone help me decide what sort of optics to buy?

Description : Can anyone help me decide what sort of optics to buy?

Last Answer : I have a Ruger 10–22. I bought a 3X9 power scope for it. It might be a Leuopold. I’ll check. The scope was more than the rifle, but it was more than worth it.

Which one of the following statements is correct? (A) Snow albedo falls at all wave length with the increase of grain size (B) The effect of grain size on reflection is maximum in the near-IR region (C) The effect of grain size on reflection is low in the visible region of the spectrum (D) All of these

Description : Which one of the following statements is correct? (A) Snow albedo falls at all wave length with the increase of grain size (B) The effect of grain size on reflection is maximum in the near-IR ... effect of grain size on reflection is low in the visible region of the spectrum (D) All of these

Last Answer : Answer: Option D

Name the spectral series which appear in the region of electromagnetic spectrum. (a) Visible region (b) UV region (c) Far IR region

Description : Name the spectral series which appear in the region of electromagnetic spectrum. (a) Visible region (b) UV region (c) Far IR region

Last Answer : Ans: (a) Balmer Series (b) Lymen Series (c) Pfund Series

Write down different frequencies for following(frequency ranges). (1) Voice frequency (2) High frequency (3) IR frequency (4) Visible frequency(light)

Description : Write down different frequencies for following(frequency ranges). (1) Voice frequency (2) High frequency (3) IR frequency (4) Visible frequency(light)

Last Answer : Sr. No Frequency Range 1 Voice Frequency 300 Hz to 3kHz 2 High Frequency  3 MHz to 30 MHz 3 IR Frequency 30 THz to 430 THz 4 Visible Spectrum (light) 375 THz to 750 THz

The region of the electromagnetic spectrum immediately above the frequencies to which the human eye is sensitive is called: w) ir x) ultra-violet y) rf z) gamma ray

Description : The region of the electromagnetic spectrum immediately above the frequencies to which the human eye is sensitive is called: w) ir x) ultra-violet y) rf z) gamma ray

Last Answer : ANSWER: X -- ULTRA-VIOLET

A precious stone as clear as diamond. Seek it out when the suns near the horizon. Though you can walk on water with its power. Try to keep it, and it will vanish in an hour. What am I? -Riddles

Description : A precious stone as clear as diamond. Seek it out when the suns near the horizon. Though you can walk on water with its power. Try to keep it, and it will vanish in an hour. What am I? -Riddles

Last Answer : Ice.

Which region is leading producer of “bort” variety of diamond in the world?

Description : Which region is leading producer of “bort” variety of diamond in the world?

Last Answer : Zaire

Which series of hydrogen atomic spectrum lies in the visible region?

Description : Which series of hydrogen atomic spectrum lies in the visible region?

Last Answer : Answer: Balmer series.

A substance emits energy which is detected as a line emission in the visible region using a spectroscope. The origin of this energy is (a) Vibrational energy of the molecules (b) Rotational energy of the molecules (c) Energy of orbital electrons (d) Energy of protons in the nucleus.

Description : A substance emits energy which is detected as a line emission in the visible region using a spectroscope. The origin of this energy is (a) Vibrational energy of the molecules (b) Rotational energy of the molecules (c) Energy of orbital electrons (d) Energy of protons in the nucleus.

Last Answer : Ans:(c)

X-rays region lies between – (1) Ultraviolet and visible region (2) Visible and infra-red region (3) Gamma-rays and ultraviolet region (4) Short radio waves and long radio waves

Description : X-rays region lies between – (1) Ultraviolet and visible region (2) Visible and infra-red region (3) Gamma-rays and ultraviolet region (4) Short radio waves and long radio waves

Last Answer : (3) Gamma-rays and ultraviolet region Explanation: X-rays region lies between Gamma rays and ultra-violet region.

In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie? (1) Visible (2) Infrared (3) Ultraviolet (4) X-ray

Description : In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie? (1) Visible (2) Infrared (3) Ultraviolet (4) X-ray

Last Answer : (3) Ultraviolet

Transition ions absorb light in – (1) infrared region (2) ultraviolet region (3) microwave region (4) visible region

Description : Transition ions absorb light in – (1) infrared region (2) ultraviolet region (3) microwave region (4) visible region

Last Answer : (4) visible region Explanation: Transition metal ions have an incomplete set of 3d electrons. Changes in the energy of these electrons correspond to the energy of visible light. The absorption of visible light by these ions lend colour to gems.

Emission of light in the visible region after absorbing certain electromagnetic radia- tions is called?

Description : Emission of light in the visible region after absorbing certain electromagnetic radia- tions is called?

Last Answer : Photoluminescence

Three spectral series, paschen series, Brackett series, Pfund series are found in the a) ultraviolet region b) visible region c) infrared region d) a & b region

Description : Three spectral series, paschen series, Brackett series, Pfund series are found in the a) ultraviolet region b) visible region c) infrared region d) a & b region

Last Answer : c) infrared region

The region where the Lyman series contains the wavelength 1∕ λ = RH [1/ 12 – 1/ n2 ] is a) visible region b) infrared region c) ultraviolet region d ) none of these

Description : The region where the Lyman series contains the wavelength 1∕ λ = RH [1/ 12 – 1/ n2 ] is a) visible region b) infrared region c) ultraviolet region d ) none of these

Last Answer : c) ultraviolet region

The only series which lies in the visible region of the electromagnetic spectrum is a) Paschen series b) Lyman series c) Balmer series d) Pfund series

Description : The only series which lies in the visible region of the electromagnetic spectrum is a) Paschen series b) Lyman series c) Balmer series d) Pfund series

Last Answer : b) Lyman series

The radiations emitted by human body lies in a) Infrared region b) Ultraviolet region c) Visible region d) None of the above

Description : The radiations emitted by human body lies in a) Infrared region b) Ultraviolet region c) Visible region d) None of the above

Last Answer : a) Infrared region

Which region of the electro-magnetic spectrum will cause sunburns? w) ultraviolet x) infrared y) visible

Description : Which region of the electro-magnetic spectrum will cause sunburns? w) ultraviolet x) infrared y) visible

Last Answer : ANSWER: W -- ULTRAVIOLET

In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie ? (1) Visible (2) Infrared (3) Ultraviolet (4) X-ray

Description : In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie ? (1) Visible (2) Infrared (3) Ultraviolet (4) X-ray

Last Answer : Ultraviolet

Transition ions absorb light in : (1) infrared region (2) ultraviolet region (3) microwave region (4) visible region

Description : Transition ions absorb light in : (1) infrared region (2) ultraviolet region (3) microwave region (4) visible region

Last Answer : visible region

X-rays region lies between (1) Ultraviolet and visible region (2) Visible and infra-red region (3) Gamma-rays and ultraviolet region (4) Short radio waves and long radio waves

Description : X-rays region lies between (1) Ultraviolet and visible region (2) Visible and infra-red region (3) Gamma-rays and ultraviolet region (4) Short radio waves and long radio waves

Last Answer : Gamma-rays and ultraviolet region

What are the two data structures that make IR systems efficient?

Description : What are the two data structures that make IR systems efficient?

Last Answer : i. Lexicon  ii.Inverted Index

Windows program to record IR signals and rebroadcast them?

Description : Windows program to record IR signals and rebroadcast them?

Last Answer : Try searching on the term IR repeater.

How could I use my PC's IR port for this?

Description : How could I use my PC's IR port for this?

Last Answer : Hack a Day has projects like that. Searching the site for ‘infrared’ might generate some ideas.

I need something to take use of my laptops IR port.

Description : I need something to take use of my laptops IR port.

Last Answer : You are going to have to write one. I haven’t owned a notebook computer with an IR port for many years – haven’t even seen one. Like RS232 ports they seem to have faded away.

Can I use a RC-5 IR remote with a Canon 500D?

Description : Can I use a RC-5 IR remote with a Canon 500D?

Last Answer : I’m on my phone right now or I’d try it for you but have you tried this same question on the Canon site?

What is the full form of 'IR' ? -How To ?

Description : What is the full form of 'IR' ? -How To ?

Last Answer : The full form of 'IR' is Indian Railway

What is the atomic number of Ir ?

Description : What is the atomic number of Ir ?

Last Answer : The atomic number of Ir is 77

Explain the use of IR rays in medical field ?

Description : Explain the use of IR rays in medical field ?

Last Answer : Although IR rope is not yet used in medical field in our country, it is widely used in various physiotherapy. However, this method is also being used extensively in the outside world. In ... Diagnosis of blood circulation in damaged or damaged cells. Diagnosis of oxygen transport in blood and cells.

If CFSE increases by 30% and 40% respectively for `Co^(3+) " to " Rh^(3+) " to " Ir^(3+)`, then the total increase in CFSE for `Ir^(3+)` with respect

Description : If CFSE increases by 30% and 40% respectively for `Co^(3+) " to " Rh^(3+) " to " Ir^(3+)`, then the total increase in CFSE for `Ir^(3+)` with respect

Last Answer : If CFSE increases by 30% and 40% respectively for `Co^(3+) " to " Rh^(3+) " to " Ir^(3+)`, then the ... Ir^(3+)` with respect to `Co^(3+)` is ..

Why water is not good solvent for ir spectroscopy?

Description : Why water is not good solvent for ir spectroscopy?

Last Answer : Need answer

What do -ar -ir and -er infinitive verbs have in common in the future tense?

Description : What do -ar -ir and -er infinitive verbs have in common in the future tense?

Last Answer : Need answer

What does Ir. mean?

Description : What does Ir. mean?

Last Answer : Industrial Relations

What is an IR cable for a TV box?

Description : What is an IR cable for a TV box?

Last Answer : An IR Blaster cable is a USB device. It creates a wireless, infrared connection between your cable box and the PC running beyond TV.

The ___________ contains the address of the next instruction to be executed. a) IR b) PC c) Accumulator d) System counter

Description : The ___________ contains the address of the next instruction to be executed. a) IR b) PC c) Accumulator d) System counter

Last Answer : Answer: b Explanation: PC stands for program counter (It contains the address of the next instruction to be executed)

Thiamidine dimer formation in DNA is caused by - (1) IR-rays (2) X-rays (3) b and g-rays (4) UV-rays

Description : Thiamidine dimer formation in DNA is caused by - (1) IR-rays (2) X-rays (3) b and g-rays (4) UV-rays

Last Answer : (4) UV-rays Explanation: When cells are exposed to sunlight, radiant energy damage the DNA. For example, ultraviolet irradiation causes covalent bond formation between adjacent thymines on the same strand of ... . This added energy opens up the bond and allows it to react with a neighboring base.

The decoded instruction is stored in ______ (A) Register (B) Memory Address Register(MAR) (C) Instruction Register(IR) (D) None of the Above

Description : The decoded instruction is stored in ______ (A) Register (B) Memory Address Register(MAR) (C) Instruction Register(IR) (D) None of the Above

Last Answer : (C) Instruction Register(IR)

Which registers can interact with secondary memory? (A) Register (B) Memory Address Register(MAR) (C) Instruction Register(IR) (D) None of the Above

Description : Which registers can interact with secondary memory? (A) Register (B) Memory Address Register(MAR) (C) Instruction Register(IR) (D) None of the Above

Last Answer : (B) Memory Address Register(MAR)

Although saturable reactors are extremely useful in some applications, their gain is low because of ____________. A. core hysteresis losses B. inductive reactance in the control winding C. IR drop throughout the load winding D. all of the above

Description : Although saturable reactors are extremely useful in some applications, their gain is low because of ____________. A. core hysteresis losses B. inductive reactance in the control winding C. IR drop throughout the load winding D. all of the above

Last Answer : Answer: A

The heating of conductors as a result of resistance in a distribution circuit causes a power loss expressed as _____________. A. line droop B. line loss C. IR drop D. hysteresis

Description : The heating of conductors as a result of resistance in a distribution circuit causes a power loss expressed as _____________. A. line droop B. line loss C. IR drop D. hysteresis

Last Answer : Answer: B

Both Infrared and Microwave bands are invisible to the human eye. Then how are IR and microwave images from remote sensing satellites printed? How do they substitute the wavelengths?

Description : Both Infrared and Microwave bands are invisible to the human eye. Then how are IR and microwave images from remote sensing satellites printed? How do they substitute the wavelengths?

Last Answer : Both infrared and microwaves are part of the electromagnetic spectrum, which stretches from radio waves to gamma rays. each band of this spectrum corresponds to a small range of frequencies. Each ... levels) are finally printed on a computer screen as a picture or as a conventional photograph.

Heat produced when a steady state current, I passes through an electrical conductor having resistance, 'R' is (A) IR (B) I 2R (C) IR 2 (D) I 2R

Description : Heat produced when a steady state current, I passes through an electrical conductor having resistance, 'R' is (A) IR (B) I 2R (C) IR 2 (D) I 2R

Last Answer : (B) I 2R

Equation which measures alternating voltage is A. Vsin ω B. sin t C. Vo sinωt D. V=IR

Description : Equation which measures alternating voltage is A. Vsin ω B. sin t C. Vo sinωt D. V=IR

Last Answer : Vo sinωt

IR (information Retrieval) and IE (Information Extraction) are the two same thing. a) True b) False

Description : IR (information Retrieval) and IE (Information Extraction) are the two same thing. a) True b) False

Last Answer : b) False

How will you improve the IR value of a motor?

Description : How will you improve the IR value of a motor? 

Last Answer : By providing external heating. (By filament lamps) By providing internal heating by applying the low voltage. By circulating hot and dry air. 

What is the recommended IR value for generator?

Description : What is the recommended IR value for generator?  

Last Answer : Main generator is class B insulated machine. Without stator water recommended insulation value for the generator is R60 = kV + 1 MΩ R60 – minimum recommended IR in MΩ of entire winding at 40°C of 60 Sec. kV – rated voltage. For the IR measurement 1 kV megger should be used. 

What is the generator IR value when generator is filled with stator water and hydrogen?

Description : What is the generator IR value when generator is filled with stator water and hydrogen?  

Last Answer : Generator IR when filled with stator water and hydrogen is about 100 kΩ only. That is because most of the gases and liquids are self-restoring insulators. As we are measuring insulation with 1 kV or 5 kV ... region moderate voltage (1 kV to 70 kV), and breakdown region is above 70 kV voltage.  

What is IR and PI value? Why it is measured?

Description : What is IR and PI value? Why it is measured?

Last Answer : IR It is the ratio of the DC voltage applied between the terminals and ground to the resultant current. When the DC voltage applied three components flow, a) A charging component flows ... Index). PI value detects relative condition of insulation with respect to moisture and other contaminants.

The register that includes the address of the memory unit is termed asthe _ a. MAR b PC Cc. IR d. None of these

Description : The register that includes the address of the memory unit is termed asthe _ a. MAR b PC Cc. IR d. None of these

Last Answer : a. MAR