ECAT Pre Computer Science Chapter 20 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 20 Atomic Spectra

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

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ECAT Physics Chapter 20 Atomic Spectra

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Question # 1

The transitions of electrons in the hydrogen atom result in the emission of spectral lies in the:

Question # 2

Ultraviolet region lies in ______ series

Question # 3

The first series which was identified in the spectrum of hydrogen is called:

Question # 4

By CAT scans, we can detect the density difference of the order of:

Question # 5

Lyman series in the spectrum of hydrogen exists in the :

Question # 6

CT scanning is the abbreviated name of

Question # 7

The natural arrangement of colours in the spectrum of white light spectrum is

Question # 8

We can excite an atom by

Question # 9

The process of formation of spectrum is called:

Question # 10

The shell closer to the nucleus is called:

Question # 11

Photons must have energy equal to

Question # 12

Gaussian surface is always:

Question # 13

X-ray are also known as

Question # 14

Tick the series which lie/s in. the infra-red region.

Question # 15

The results of spectra obtained by Balmer were expressed in 1896 by:

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ECAT Physics Chapter 20 Important MCQ's

Sr.# Question Answer
1 The electric field lines start from:
A. Positive charge
B. Negative charge
C. Either A and B
D. Neutron
2 The formula of Brackett series can be obtained by putting in the general formula, the value of n equal to:
A.
one
B. two
C. three
D. four
3 The spectrum emitted from hydrogen filled discharge tube is:
A. Line spectrum
B. Discrete spectrum
C. And spectrum
D. Absorption spectrum
4 The photocopying process is called:
A. Geography
B. Sonography
C. Xerography
D. Zerography
5 Gaussian surface is always:
A. Rectangular
B. Spherical
C. Cylinder
D. Box shape
6 The natural arrangement of colours in the spectrum of white light spectrum is
A. VIBGYOR
B. ROYBGIV
C. ROYBIGV
D. BIGROYV
7 Tick the series which lies in the visible region:
A. Lyman series
B. Balmer series
C. Paschen series
D. Brackett series
8 The first series which was identified in the spectrum of hydrogen is called:
A. Lyman series
B. Balmer series
C. Paschen series
D. Brackett series
9 Tick the series which lie/s in. the infra-red region.
A. Pfund series
B. Brackett series
C. Paschen series
D. All of these
10 An compared to solid matter, a crack or an air bubble allows:
A. Great amount of X-rays to pass
B. Smallast amount of X-rays to pass
C. Very samall amount of X-rays to pass
D. Any of these

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