Second Year Physics Chapter 20 Online MCQ Test for 2nd Year Physics Chapter 20 Atomic Spectra Preparation

FSC Part 2 Physics
Chapter 20 Test

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Physics FSC Part 2 Chapter 20 Online MCQ's Test

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Question # 1

The longest wavelength of Paschen series is.

Question # 2

In Helium Neon laser, discharge tube is filled with Neon gas.

Question # 3

Kx -Xrays are produced due to transition of electron from.

Question # 4

The following gas was identified in the sun using spectroscopy

Question # 5

The unit of Rh is.

Question # 6

Which of the following series of hydrogen spectrum lies in ultra violet region.

Question # 7

The temperature of core of nuclear reactor is:

Question # 8

The first theory about the structure of an atom was introduced by

Question # 9

Bremsstrahlung radiation are examples of

Question # 10

The series in infrared region is:

Question # 11

Laser is a beam of light which is

Question # 12

Helium-Neon laser discharge tube contains neon

Question # 13

X-rays were discovered by

Question # 14

Earth orbital speed is

Question # 15

Balmer series lies in

Question # 16

Target material used in x-rays tube have following properties.

Question # 17

Life time of metastable states is

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FSC Part 2 Physics Chapter 20 Online Test MCQ's

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Production of x rays is reverse process of
A. Photo electric effect
B. Compton effect
C. An nihilation
D. Pair production
2 A° is the unit of:
A. Energy
B. Length
C. Nuclear energy
D. Work
3 The first theory about the structure of an atom was introduced by
A. Neil Bohr
B. Einstein
C. Compton
D. Rutherford
4 The process by which lesser beam can be used to generate 3-dimensional images of objects is called
A. Holography
B. Geo graphy
C. Tomography
D. Radio graphy
5 Study of hydrogen visible spectrum in
A. 1886
B. 1887
C. 1895
D. 1885
6 If the ionization energy of hydrogen atom is 13.6 eV, its ionization potential will be
A. 136.0 volt
B. 3.0 volt
C. 13.6 volt
D. None of these
7 Laser is a beam of light which is
A. Monochromatic
B. Coherent
C. Unidirectional
D. All of these
8 In according with Bohr's theory the K.E of the electron is equal to:
A. ke2/2r
B. Ze2/r
C. Ze2/r2
D. Ze2/2r2
9 1 rem =
A. 0.001 SV
B. 0.01 SV
C. 0.1 SV
D. 1.01 SV
10 The line radiations emitted from by hydrogen filled discharge tube can be analyzed into.
A. Band spectrum
B. Line spectrum
C. Continuous spectrum
D. Absorption spectrum

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