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
42

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

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

1 / 95

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

2 / 95

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

3 / 95

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

4 / 95

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

5 / 95

X-Rays are similar in nature to:

6 / 95

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

7 / 95

Lyman series contains the wavelength given by the forumula:

8 / 95

X-Rays can cause:

9 / 95

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

10 / 95

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

11 / 95

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

12 / 95

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

13 / 95

The total energy of an electron remains constant:

14 / 95

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

15 / 95

The type of spectra produced by atom is:

16 / 95

Pfund series contains the wavelength given by the forumula:

17 / 95

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

18 / 95

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

19 / 95

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

20 / 95

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

21 / 95

X-Rays are:

22 / 95

The energy of X-Rays depends upon:

23 / 95

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

24 / 95

The diameter of the atom is the order of:

25 / 95

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

26 / 95

Brackett and Pfund series of spectral lines lies in the:

27 / 95

The reverse process of photoelectric effect is called

28 / 95

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

29 / 95

The value of Rydberg's Constant RH is:

30 / 95

Which of the following is an example of continuous spectra?

31 / 95

The radiation emitted from hydrogen filled discharge tube shows:

32 / 95

X-Rays were discovered in 1895 by:

33 / 95

X-Ray diffraction reveals that they are:

34 / 95

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

35 / 95

X-Rays eject electrons from matter by:

36 / 95

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

37 / 95

Which of the following is an example of line spectra?

38 / 95

X-Rays are affected by:

39 / 95

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

40 / 95

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

41 / 95

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

42 / 95

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

43 / 95

X-Rays cannot produce pair production because:

44 / 95

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

45 / 95

According to 3rd postulate of Bohr's theory

46 / 95

When electron abosrbs some energy, it jumps to:

47 / 95

CAT stands for:

48 / 95

An is equal to:

49 / 95

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

50 / 95

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

51 / 95

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

52 / 95

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

53 / 95

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

54 / 95

Balmer series contains the wavelength given by the formula:

55 / 95

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

56 / 95

One Widely used system is computerized axial tomography is called:

57 / 95

Ionization energy of Hydrogen atom m first exited stated is:

58 / 95

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

59 / 95

The magnitude of ionization of hydrogen is:

60 / 95

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

61 / 95

Which of the phenomenon can be studied with X-Rays

62 / 95

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

63 / 95

Which of the following shell is closest to nucleus

64 / 95

Which of the following radiation will burn human skin?

65 / 95

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

66 / 95

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

67 / 95

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

68 / 95

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

69 / 95

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

70 / 95

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

71 / 95

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

72 / 95

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

73 / 95

The penetrating power of X-Rays depends on their:

74 / 95

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

75 / 95

Radiation with wavelength greater than red light is called:

76 / 95

The rest mass of X-Rays Photon is:

77 / 95

CAT-scans can be used to detect tumors in:

78 / 95

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

79 / 95

Which of the following is an example of band spectra?

80 / 95

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

81 / 95

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

82 / 95

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

83 / 95

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

84 / 95

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

85 / 95

X-Rays can:

86 / 95

The continuous X-Rays spectrum is obtained due to:

87 / 95

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

88 / 95

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

89 / 95

The SI unit of Rydberg constant is:

90 / 95

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

91 / 95

Balmer series contains the wavelength in the:

92 / 95

X-Rays exhibit the phenomenon of:

93 / 95

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

94 / 95

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

95 / 95

The spectrum of visible sun light ranges from:

Your score is

The average score is 43%

0%




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