ECAT Pre Engineering Physics Chapter 20 MCQ Test With Answer

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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Physics ECAT Pre Engineering Chapter 20 Atomic Spectra

00:00
Question # 1

Lyman series in the spectrum of hydrogen exists in the :

Question # 2

An electron of the hydrogen atom in the second orbit is called its:

Question # 3

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

Question # 4

Tick the series which lies in the visible region:

Question # 5

Gaussian surface is always:

Question # 6

CT scanning is the abbreviated name of

Question # 7

Graph of Black body radiation is example of

Question # 8

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

Question # 9

Selenium is:

Question # 10

Braking radiation causes:

Question # 11

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

Question # 12

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 # 13

The process of formation of spectrum is called:

Question # 14

A metastable stae:

Question # 15

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

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ECAT Physics Chapter 20 Important MCQ's

Sr.# Question Answer
1 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
2 The electric field lines start from:
A. Positive charge
B. Negative charge
C. Either A and B
D. Neutron
3 The value of the metastable state for Neon is
A. 20.66eV
B. 20.61eV
C. 19.23eV
D. 18.70eV
4 Ultraviolet region lies in ______ series
A. Layman
B. Balmer
C. P fund
D. B racket
5 Laser is a beam of:
A. Visible light
B. Infra red light
C. Ultra violet light
D. Violet light only
6 The shell closer to the nucleus is called:
A. N shell
B.
L shell
C. K shell
D. M shell
7 X-rays can penetrate in a solid matte through a distance of several:
A. Kilo metres
B. Metres
C. Centimeters
D. A few angstroms
8 CT scanning is the abbreviated name of
A. Computed Technology
B. Computed Technique
C. Computed Technology
D. Computerized Technique
9 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
10 The inkjet printer eject a thin stream of:
A. Water
B. Oil
C. Ink
D. Any above

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  • Salmankhan

    Salmankhan

    01 Feb 2018

    Some mcqs having wrong answers.

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