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

00:00
Question # 1

Laser is a beam of:

Question # 2

Balmer series was identified in:

Question # 3

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

Question # 4

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

Question # 5

Braking radiation causes:

Question # 6

The inkjet printer eject a thin stream of:

Question # 7

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

Question # 8

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

Question # 9

CT scanning is the abbreviated name of

Question # 10

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

Question # 11

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 # 12

Ultraviolet region lies in ______ series

Question # 13

Photons must have energy equal to

Question # 14

We can excite an atom by

Question # 15

Graph of Black body radiation is example of

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ECAT Physics Chapter 20 Important MCQ's

Sr.# Question Answer
1 CT scanning is the abbreviated name of
A. Computed Technology
B. Computed Technique
C. Computed Technology
D. Computerized Technique
2 The results of spectra obtained by Blamer were expressed in 1896 by
A. Bohr
B. Rydberg
C. Planck
D. Rutherford
3 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
4 The minimum wavelength of X-rays produced of 1KV potential difference is applied across the anode and cathode of the tube is
A. 1.24 x 10-10m
B. 7.92 x 10-20m
C. 2.78 x 10-14m
D. 3.88 x 10-11m
5 Braking radiation causes:
A. Continuous spectrum
B. Line Spectrum
C. Band spectrum
D. Discrete specturm
6 X-ray are also known as
A. Roentgen rays
B. Maxwell rays
C. Plank range
D. Einstein rays
7 The results of spectra obtained by Balmer were expressed in 1896 by:
A.
Bohr
B. Rydberg
C. Planck
D. Rutherford
8 The photocopying process is called:
A. Geography
B. Sonography
C. Xerography
D. Zerography
9 The process of formation of spectrum is called:
A. Interference
B. Spectroscopy
C. Dispersion
D. Reflection
10 If the distance between two charges is doubled,the force between them will become:
A. Double
B. Half
C. One third
D. One fourth

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