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 photocopying process is called:

Question # 2

In case of braking radiations, when the rate of deceleration is very large, the emitted radiation corresponds to:

Question # 3

Tick the series which lies in the visible region:

Question # 4

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

Question # 5

The inkjet printer eject a thin stream of:

Question # 6

Gaussian surface is always:

Question # 7

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

Question # 8

The first shell near the neucles is

Question # 9

The shell closer to the nucleus is called:

Question # 10

X-ray are also known as

Question # 11

An compared to solid matter, a crack or an air bubble allows:

Question # 12

The value of the metastable state for Neon is

Question # 13

The lasing or active medium in He-Ne laser discharge tube is:

Question # 14

Static electricity is produced by the transfer of:

Question # 15

Spectrum represents the number of component colours present in certain light in terms of:

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ECAT Physics Chapter 20 Important MCQ's

Sr.# Question Answer
1 Braking radiation causes:
A. Continuous spectrum
B. Line Spectrum
C. Band spectrum
D. Discrete specturm
2 An electron of the hydrogen atom in the second orbit is called its:
A. Ground state
B. Excited state
C. Ionized state
D. Any of these
3 The photocopying process is called:
A. Geography
B. Sonography
C. Xerography
D. Zerography
4 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
5 The inkjet printer eject a thin stream of:
A. Water
B. Oil
C. Ink
D. Any above
6 The results of spectra obtained by Blamer were expressed in 1896 by
A. Bohr
B. Rydberg
C. Planck
D. Rutherford
7 The spectrum emitted from hydrogen filled discharge tube is:
A. Line spectrum
B. Discrete spectrum
C. And spectrum
D. Absorption spectrum
8 The process of formation of spectrum is called:
A. Interference
B. Spectroscopy
C. Dispersion
D. Reflection
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 Static electricity is produced by the transfer of:
A. Electrons
B. Protons
C. One fluid
D. Two fluid

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