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Physics FSC Part 2 Chapter 20 Online MCQ's Test
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Total Questions17
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Time Allowed20
Physics FSC Part 2 Chapter 20 Online MCQ's Test
Which of the following is one of the spectral series of atomic hydrogen?
The longest wavelength of Paschen series is.
Life time of metastable states is
For an atom of hydrogen atom the radius of the first orbit is given by:
Balmer series lies in region of electromagnetic spectrum.
Balmer series lies in
Helium-Neon laser discharge tube contains neon
Reflecting mirrors in laser is used to
Radius of first Bohr's orbit is.
When an electron in an atom goes from a lower to higher orbit its:
Which series lies in the ultraviolet region.
In an electronic transition atom cannot emit.
The first laser was built by
The velocity of electron moving is 1st orbit of hydrogen atom is:
X-rays were discovered by
Laser is a beam of light which is
In the Bohr's model of the hydrogen atom, the lowest orbit corresponds to:
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Biology Chapter 1 - Answers Mode
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Biology Chapter 1 MCQ - PDF
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Download PDF with answers to study online or offline. The PDF cotnains all MCQ questions with answers for Class 10 Biology Chapter 1 - Acids and Liquids. Total questions are 12.
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