12th Class PHYSICS Online Quiz Chapter No.9 ATOMIC SPECTRA

Physics MCQs 2nd Year Chapter No.9 ATOMIC SPECTRA Test No.1, FSc, Grade 12, Second Year Multiple Choice Questions, Medical College ( MDCAT ) , ECAT & University Admission Entry Test Exams Online Preparation, Chapter Wise Questions Answers Quiz Notes in Pdf Download, All Old Board Papers included, All Queries reply within 24 Hours. Click here to Contact us for any Query/Question regarding Exams.

PHYSICS 
Chapter Name : ATOMIC SPECTRA 
Chapter No.9  [Test No.1]
2nd Year
Multiple Choice Questions

 








Book Name :  PHYSICS
Chapter No. 9 (Test No.1)
Chapter Name : ATOMIC SPECTRA 
Total MCQ from Text Book :  95
Book Version  :
2022

Published By : Punjab Text Book Board Lahore
Approved By : Govt of the Punjab and Federal Ministry for Education
Test Type : MCQ’s
Exam conduct By : Inter Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal
Class / Grade  : 12 ( F.Sc. Intermediate)
Total Marks : 95
Total Time :   95 minutes
49

GRADE 12 - PHYSICS CHAPTER NO. 9 ATOMIC SPECTRA Test No.1

GRADE 12 - PHYSICS CHAPTER NO. 9 ATOMIC SPECTRA Test No.1

1 / 95

Bohr's atomic model of hydrogen atom was proposed by Bohr in:

2 / 95

Total energy of an electron in an orbit around the nucleus is the sum of:

3 / 95

If an electron jumps from lower to higher orbit it will:

4 / 95

The continuous X-Rays spectrum is obtained due to:

5 / 95

The wave length of shortest wave length inLyman series is equal to:

6 / 95

One Widely used system is computerized axial tomography is called:

7 / 95

The branch of physics which deals with the investigation of wavelength and intensities of elctromagnetic radiation emitted or absorbed by atoms is called:

8 / 95

The diameter of the atom is the order of:

9 / 95

Total energy of an electron in an orbit around the nucleus is:

10 / 95

The relation between Rydberg constant(RH) and ground state energy (En) is given by the relation:

11 / 95

K? characteristics X-Rays are produced due to the transition of the electrons:

12 / 95

The radiation emitted from hydrogen filled discharge tube shows:

13 / 95

The value of Rydberg's Constant RH is:

14 / 95

X-Rays can:

15 / 95

The reverse process of photoelectric effect is called

16 / 95

The wavelength of Lyman series for hydrogen spectrum lies in the:

17 / 95

The separation of ordinary whtie light into its components by the use of prism or grating is called:

18 / 95

After the emission of X-Rays, the atom of the target is:

19 / 95

In the spectrum of which of the following will you find Balmer series:

20 / 95

The scientist who studied the wavelength of all lines of the hydrogen spectrum in visible region was:

21 / 95

The total energy of the electron in nth orbit of hydrogen atom around the nucleus is given by:

22 / 95

Which of the following shell is closest to nucleus

23 / 95

The continuous X-Rays spectrum is due to an effect known as:

24 / 95

The spectral series were identified in the spectrum of hydrogen by:

25 / 95

The velocity of X-Rays is equal to that of:

26 / 95

When electron in hydrogen atom jumps from higher orbit into second orbit, the set of lines emitted is called

27 / 95

The line spectrum of hydrogen atom contains the spectral lines in the region:

28 / 95

If the ionization energy of hydrogen atom is 13.6eV, the ionization potential will be:

29 / 95

X-Rays are similar in nature to:

30 / 95

When an electron exists in its lowest state, it is called:

31 / 95

The rest mass of X-Rays Photon is:

32 / 95

In X-Rays producing arrangement, target is made of:

33 / 95

The emissions of photons by a metal when electrons are incident is called:

34 / 95

The energy of X-Rays depends upon:

35 / 95

The potential required to lift an electron from ground state to excited state is called:

36 / 95

The potential required to lift an electron from ground state to higher energy state is called:

37 / 95

X-Rays exhibit the phenomenon of:

38 / 95

CAT stands for:

39 / 95

Balmer series contains the wavelength given by the formula:

40 / 95

X-Rays eject electrons from matter by:

41 / 95

Radiation with wavelength greater than red light is called:

42 / 95

X-Rays are electromagnetic wave having wavelength in the range of:

43 / 95

The energy of the 4th orbit in hydrogen atom is:

44 / 95

According to 3rd postulate of Bohr's theory

45 / 95

The total energy of an electron revolving in the second orbit is:

46 / 95

X-Rays are:

47 / 95

X-Rays can cause:

48 / 95

When electron in hydrogen atom jumps from higher orbit into fifth orbit, the set of lines emitted is called

49 / 95

In the state n = ? of hydrogen atom, total energy of electron is:

50 / 95

The type of spectra produced by atom is:

51 / 95

The first spectral series in the spectrum of hydrogen atom was identified by Balmer in:

52 / 95

An is equal to:

53 / 95

The spectrum of visible sun light ranges from:

54 / 95

Which of the following radiation will burn human skin?

55 / 95

Pfund series contains the wavelength given by the forumula:

56 / 95

X-Rays cannot produce pair production because:

57 / 95

When electron abosrbs some energy, it jumps to:

58 / 95

The total energy of the electron in the nth orbit of hydrogen atom can also be written as:

59 / 95

Which of the following is the spectral series of atomic hydrogen?

60 / 95

X-Ray diffraction reveals that they are:

61 / 95

The total energy of an electron remains constant:

62 / 95

Which of the phenomenon can be studied with X-Rays

63 / 95

The energy required to completely remove an electron from the atom is called:

64 / 95

When an electron jumps from higher energy orbit to lower energy orbit, the difference of encergy appears in the form of:

65 / 95

J.R. Rydberg obtained a formula to describe the wavelength of the hydrogen atom in:

66 / 95

En-Ep = hf, where hf is the energy of:

67 / 95

According to Bohr Atomic Model, the angular momentum of electron in an orbit equal to an integral multiple of:

68 / 95

With increasing orbit number(n) the energy difference between adjacent levels in atoms:

69 / 95

The radius of the third Bohr orbit in hydrogen atom is greater than the radius of the first orbit by a factor of:

70 / 95

Which of the following is an example of band spectra?

71 / 95

Balmer series contains the wavelength in the:

72 / 95

The transition of electrons between the various shells give rise to:

73 / 95

Brackett and Pfund series of spectral lines lies in the:

74 / 95

The radius of 1st Bohr's orbit for hydrogen atom is:

75 / 95

The P.E. of an electron revolving at a distance rn from the nucleus is:

76 / 95

Balmer empirical formula explain the electromagnetic radiations of any excited atom is in terms of their:

77 / 95

The numerical value of ground state energy for hydrogen atom is:

78 / 95

X-Rays were discovered in 1895 by:

79 / 95

Which of the following is an example of line spectra?

80 / 95

CAT-scans can be used to detect tumors in:

81 / 95

A X-Rays Photon produced due to transition of electron from M-Shell to K-Shell is called:

82 / 95

When electron in hydrogen atom jumps from higher orbit into first orbit, the set of lines emitted is called

83 / 95

The radius of nth orbit of hydrogen atom can be given by:

84 / 95

Electrostatic force between the electron and the nucleus of hydrogen atom is given by:

85 / 95

X-Rays are affected by:

86 / 95

The SI unit of Rydberg constant is:

87 / 95

If the nummber of electrons hitting the target in the x-tube increases, then the intensity of the X-Rays:

88 / 95

The speed of the electron in the first Bohr orbit is:

89 / 95

The velocity of moving electron in nth orbit is given by the relations:

90 / 95

The penetrating power of X-Rays depends on their:

91 / 95

Ionization energy of Hydrogen atom m first exited stated is:

92 / 95

Which of the following is an example of continuous spectra?

93 / 95

The magnitude of ionization of hydrogen is:

94 / 95

Lyman series contains the wavelength given by the forumula:

95 / 95

X-Rays and gamma rays of the same wavelength and intensity can be differentiated by observing:

Your score is

The average score is 41%

0%




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