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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
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Question # 1
Spectrum represents the number of component colours present in certain light in terms of:
Question # 2
An electron of the hydrogen atom in the second orbit is called its:
Question # 3
The transitions of electrons in the hydrogen atom result in the emission of spectral lies in the:
Question # 4
We can excite an atom by
Question # 5
Balmer series was identified in:
Question # 6
CT scanning is the abbreviated name of
Question # 7
Balmer series lies in that region of electromagnetic wave spectrum which is called:
Question # 8
The value of the metastable state for Neon is
Question # 9
The results of spectra obtained by Blamer were expressed in 1896 by
Question # 10
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 # 11
The natural arrangement of colours in the spectrum of white light spectrum is
Question # 12
Tick the series which lie/s in. the infra-red region.
Question # 13
The formula of Brackett series can be obtained by putting in the general formula, the value of n equal to:
Question # 14
X-ray are also known as
Question # 15
X-rays can penetrate in a solid matte through a distance of several:
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ECAT Physics Chapter 20 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The process of formation of spectrum is called: |
A. Interference
B. Spectroscopy
C. Dispersion
D. Reflection
|
| 2 | Tick the series which lies in the visible region: |
A. Lyman series
B. Balmer series
C. Paschen series
D. Brackett series
|
| 3 | Selenium is: |
A. An insulator
B. A conductor
C. Both A and B
D. Excellent conductor
|
| 4 | The He-Ne laser discharge tube is filled with: |
A. 85% He
B. 15% He
C. 50% He
D. 60% He
|
| 5 | The results of spectra obtained by Blamer were expressed in 1896 by |
A. Bohr
B. Rydberg
C. Planck
D. Rutherford
|
| 6 | The natural arrangement of colours in the spectrum of white light spectrum is |
A. VIBGYOR
B. ROYBGIV
C. ROYBIGV
D. BIGROYV
|
| 7 | 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 |
A. Frequency
B. Penetrating power
C. Energy
D. Method of creation
|
| 8 | Laser is a beam of: |
A. Visible light
B. Infra red light
C. Ultra violet light
D. Violet light only
|
| 9 | Static electricity is produced by the transfer of: |
A. Electrons
B. Protons
C. One fluid
D. Two fluid
|
| 10 | CT scanning is the abbreviated name of |
A. Computed Technology
B. Computed Technique
C. Computed Technology
D. Computerized Technique
|
Test Questions
Share your comments & questions here
Salmankhan
01 Feb 2018Some mcqs having wrong answers.