ECAT Pre Engineering Physics Chapter 20 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 20 Atomic Spectra

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 20 Atomic Spectra

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Physics ECAT Pre Engineering Chapter 20 Atomic Spectra

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Question # 1

The shell closer to the nucleus is called:

Question # 2

The minimum wavelength of X-rays produced of 1KV potential difference is applied across the anode and cathode of the tube is

Question # 3

Atoms of hydrogen gas can be excited by passing electric current through it when the gas is filled into the discharge tube at a pressure which is

Question # 4

Coulomb multiplied by volt by volt gives the unit called:

Question # 5

The electric field lines start from:

Question # 6

Balmer series was identified in:

Question # 7

Lyman series in the spectrum of hydrogen exists in the :

Question # 8

The inkjet printer eject a thin stream of:

Question # 9

Balmer series lies in that region of electromagnetic wave spectrum which is called:

Question # 10

If the distance between two charges is doubled,the force between them will become:

Question # 11

Ultraviolet region lies in ______ series

Question # 12

A metastable stae:

Question # 13

X-rays produced in a tube operating at 105V. The speed of X-rays produced is

Question # 14

The spectrum emitted from hydrogen filled discharge tube is:

Question # 15

Static electricity is produced by the transfer of:

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