2nd Year Physics Chapter 20 Online MCQ Test for 12th Class Physics Chapter 20 (Atomic Spectra)

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MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 20 Online MCQ's Test"

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Physics ICS Part 2 Chapter 20 Online MCQ's Test

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Question # 1

The series in visible region is:

Question # 2

For Holography we use

Question # 3

The first spectral lines were discovered in 1885, were

Question # 4

We can find from de Broglie formula

Question # 5

The line radiations emitted from by hydrogen filled discharge tube can be analyzed into.

Question # 6

In an electronic transition atom cannot emit.

Question # 7

1 rem =

Question # 8

The unit of Rh is.

Question # 9

The first laser was built by

Question # 10

Radius of first Bohr's orbit is.

Question # 11

Frequency of x-rays depends upon.

Question # 12

Black Body radiation spectrum is an example of:

Question # 13

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

Question # 14

In according with Bohr's theory the K.E of the electron is equal to:

Question # 15

The value of Rydberg constant is:

Question # 16

Laser can be made by creating.

Question # 17

The series in infrared region is:

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ICS Part 2 Physics Chapter 20 Online Test MCQ's

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