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Nuclear Science

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Nuclear Science

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QUEST ? !
Question 11
What is the wavelength of visible spectrum?

A
1300 - 3000 angstrom
B
3900 - 7600 angstrom
C
7800 - 8000 angstrom
D
8500 - 9800 angstrom
Correct Answer: Option B

Actually wavelength of visible spectrum is 390nm to 760nm.
But in this case wavelength is in angstrom units.So, 1nm=109.
1angstrom=1010.
By converting nanometers to angstroms it is between 3900 to 7600.

So answer to be option C.

Question 12
Mesons are found in

A
Laser beam
B
X-rays
C
Gamma rays
D
Cosmic rays
Correct Answer: Option D

No answer description available for this question.

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