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

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FSC Part 2 Physics Chapter 20 Online Test MCQ's

Physics FSC Part 2 Chapter 20 Online MCQ's Test

Try the Physics FSC Part 2 Chapter 20 Online MCQ's Test.

  • Total Questions17

  • Time Allowed20

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Physics FSC Part 2 Chapter 20 Online MCQ's Test

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Question # 1

 Charge on an atom is:

Question # 2

Radius of first Bohr's orbit is.

Question # 3

Electron volt is unit of:

Question # 4

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

Question # 5

Reflecting mirrors in laser is used to

Question # 6

Which is not true for X rays

Question # 7

The first spectral lines were discovered in 1885, were

Question # 8

Laser is a device which can produce:

Question # 9

X-rays were discovered by

Question # 10

Charge on positron is:

Question # 11

Helium-Neon laser discharge tube contains neon

Question # 12

Which is not characteristic of Laser.

Question # 13

The series in infrared region is:

Question # 14

A° is the unit of:

Question # 15

Black Body radiation spectrum is an example of:

Question # 16

Balmer series lies in region of electromagnetic spectrum.

Question # 17

Study of hydrogen visible spectrum in

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