General Knowledge - Chemistry - Discussion
Discussion Forum : Chemistry - Section 1 (Q.No. 33)
33.
The items amenable to detection by soft x-rays are
Discussion:
9 comments Page 1 of 1.
Shreesha said:
2 years ago
What are counterfeit coins? Please explain to me.
Siva Rama Krishna said:
8 years ago
Thanks @Dhraumi.
Akhil said:
9 years ago
Counterfeit coins can be easily detected by the soft X-rays because soft X-rays can easily penetrate the counterfeit coins.
Mehul suthar said:
10 years ago
Genuine and counterfeit coins need side by side comparison to check out their minor difference and characteristic.
This identification can carried out through Comparison microscope which is useful instrument in Forensic science laboratory. Which provide side by side and overlay image facility.
This identification can carried out through Comparison microscope which is useful instrument in Forensic science laboratory. Which provide side by side and overlay image facility.
Rishab said:
1 decade ago
Counterfeit coins are the fake coins or amended coins used to deceive the purchaser these can be detected by soft x rays which have low energies in range 0.09 to 2.5 kev.
Ekta jain said:
1 decade ago
Explain correctly I couldn't understand.
P.madankar said:
1 decade ago
What are counterfeit coins?
Ram said:
1 decade ago
What is absorption length?
Explain please.
Explain please.
Dhraumi said:
1 decade ago
Soft X- rays, having wavelength 10 to 0.10nm (10 keV) , hardly penetrate matter at all, its absorption length 600eV (~ 2nm) in water is less then 1micrometer hence it can detect counterfeit coins.
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