19th Chapter

ICS Part 2 Physics Chapter 19 Online Test MCQ's

2nd Year Physics Chapter 19 Online MCQ Test for 12th Class Physics Chapter 19 (Dawn of Modern Physics)

ICS Part 2 Physics
Chapter 19 Test

Start Chapter 19 Test

2nd Year Physics Chapter 19 Online MCQ Test for 12th Class Physics Chapter 19 (Dawn of Modern Physics)

Sr. # Questions Answers Choice
1 A positron is an anti particle of.
  • A. Proton
  • B. Electron
  • C. Neutron
  • D. Photon
2 Earth orbital speed is.
  • A. 10 km/s
  • B. 20 km/s
  • C. 30 km/s
  • D. 40 km/s
3 Einstein was awarded Nobel prize in physics in
  • A. 1905
  • B. 1911
  • C. 1918
  • D. 1921
4 The physical quantity related to photon, that does not change in Compton scattering is.
  • A. Energy
  • B. Speed
  • C. Frequency
  • D. Wavelength
5 An electron miroscope emplys which to one of the following particles?
  • A. Electron ahve a wave nature
  • B. Electrons can be focused by an electric field
  • C. Electrons can be focused by a magnetic field
  • D. All of the above
6 The wavelength associated with the protons moving at speed of 40 m/s is.
  • A. 7.20 nm
  • B. 9.02
  • C. 15.7 nm
  • D. 17.3 nm
7 Pair production cannto take place in vacuum because :
  • A. Mass in not conserved
  • B. Momentum is not conserved
  • C. Energy is not conserved
  • D. Charge is not conserved
8 The value of Wien's constant:
  • A. 2.9x10<sup>-3</sup>mk
  • B. 2.19x10<sup>-7</sup>mk
  • C. 3.18 x10<sup>6</sup> km<sup>-1</sup>
  • D. 6.21 x 10<sup>-9</sup>m<sup>2</sup>wk<sup>3</sup>
9 The value of Stefan is constant is:
  • A. 4.57 x 10<sup>-8</sup> m<sup>2</sup>k<sup>2</sup>
  • B. 5.67 x10<sup>-8</sup> wm<sup>-2</sup>k<sup>-4</sup>
  • C. 6.67x 10<sup>-11</sup> wm<sup>2</sup>k<sup>4</sup>
  • D. 7.45 x &nbsp;10<sup>-9</sup> m<sup>2</sup> wk<sup>3</sup>
10 The converses of annihilation of matter is:
  • A. Photoelectric effect
  • B. Relativistic effect
  • C. Pair production
  • D. Compton effect

Top Scorers of Physics ICS Part 2 Chapter 19 Online MCQ's Test

A

Awais Farooq

Lahore20 - Apr - 2025

17/17
47 Sec
S

Shahzaibasif Asif Javed

Lahore25 - Apr - 2025

17/17
01 Mins 57 Sec
S

Shahzaibasif Asif Javed

Lahore25 - Apr - 2025

17/17
01 Mins 57 Sec
A

Almas

Lahore25 - Apr - 2025

17/17
02 Mins 07 Sec
S

Shahzaibasif Asif Javed

Lahore25 - Apr - 2025

17/17
03 Mins 03 Sec
A

Aneela

Lahore23 - Apr - 2025

17/17
14 Mins 47 Sec
A

Awais Farooq

Lahore20 - Apr - 2025

16/17
39 Sec
A

Awais Farooq

Lahore20 - Apr - 2025

16/17
56 Sec
A

Awais Farooq

Lahore25 - Apr - 2025

16/17
59 Sec
A

Awais Farooq

Lahore25 - Apr - 2025

16/17
01 Mins 27 Sec
A

Aneela

Lahore23 - Apr - 2025

16/17
01 Mins 49 Sec
A

Aneela

Lahore23 - Apr - 2025

16/17
01 Mins 56 Sec
S

Sarwat Khurshid

Lahore15 - Apr - 2025

16/17
02 Mins 29 Sec
S

Shamaim Waseem

Lahore03 - May - 2025

16/17
02 Mins 52 Sec
A

Almas

Lahore25 - Apr - 2025

16/17
03 Mins 05 Sec

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