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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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Total Questions15
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Time Allowed20
Physics ECAT Pre Engineering Chapter 20 Atomic Spectra
00:00
Question # 1
Graph of Black body radiation is example of
Question # 2
If the distance between two charges is doubled,the force between them will become:
Question # 3
Static electricity is produced by the transfer of:
Question # 4
The shell closer to the nucleus is called:
Question # 5
Consider a photon of continuous X-ray and a photon of characteristics X-ray of same wavelength. Which of the following is/are different for the two photons
Question # 6
The process of formation of spectrum is called:
Question # 7
The first series which was identified in the spectrum of hydrogen is called:
Question # 8
Ultraviolet region lies in ______ series
Question # 9
The results of spectra obtained by Balmer were expressed in 1896 by:
Question # 10
The photocopying process is called:
Question # 11
The results of spectra obtained by Blamer were expressed in 1896 by
Question # 12
The spectrum emitted from hydrogen filled discharge tube is:
Question # 13
The holes created in the L and M shells are occupied by transitions of:
Question # 14
The first shell near the neucles is
Question # 15
An electron of the hydrogen atom in the second orbit is called its:
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ECAT Physics Chapter 20 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | If the distance between two charges is doubled,the force between them will become: |
A. Double
B. Half
C. One third
D. One fourth
|
| 3 | Selenium is: |
A. An insulator
B. A conductor
C. Both A and B
D. Excellent conductor
|
| 4 | The process of formation of spectrum is called: |
A. Interference
B. Spectroscopy
C. Dispersion
D. Reflection
|
| 5 | 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 |
A. Less than atmospheric pressure
B. Much less than atmospheric pressure
C. Greater than atmospheric pressure
D. Much greater than atmospheric pressure
|
| 6 | Ultraviolet region lies in ______ series |
A. Layman
B. Balmer
C. P fund
D. B racket
|
| 7 | The photocopying process is called: |
A. Geography
B. Sonography
C. Xerography
D. Zerography
|
| 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 | The first shell near the neucles is |
A. L-shell
B. X-shell
C. N-shell
D. M-shell
|
| 10 | Graph of Black body radiation is example of |
A. Band spectra
B. Continuo's spectra
C. Line spectra
D. All
|
Test Questions
Share your comments & questions here
Salmankhan
01 Feb 2018Some mcqs having wrong answers.