Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
.jpg)
MCQ's Test For Physics ECAT Pre Engineering Chapter 19 Dawn of Modern Physics
Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 19 Dawn of Modern Physics
-
Total Questions15
-
Time Allowed20
Physics ECAT Pre Engineering Chapter 19 Dawn of Modern Physics
00:00
Question # 1
Position was discovered by Carl Anderson in
Question # 2
Intensity of light determines the:
Question # 3
A particle having mass and charge equal to that of an electron is called:
Question # 4
Photocell is a device which converts
Question # 5
the symbol to be used in relativity problems denotes:
Question # 6
Practically the quantity v/c is always:
Question # 7
The existence of position was predicted by Dirace in
Question # 8
The special theory of relatively treats the problems involving:
Question # 9
The concept of direction and position are purely
Question # 10
From the theory of relativity, momentum p of the photon is related to energy as
Question # 11
Current, voltage, resistance measuring circuit is connected with the galvanometer with the help of switch, known as
Question # 12
The general theory of relativity treats problems involving
Question # 13
The energy of photon 'E' is proported to
Question # 14
A particle of mass 5.0 mg moves with a speed of 8.0 m/s. Its de-Brogile wavelength is
Question # 15
Compton shift refers to:
Prepare Complete Set Wise Physics ECAT Pre Engineering Chapter 19 Dawn of Modern Physics MCQs Online With Answers
Top Scorers Of Physics ECAT Pre Engineering Chapter 19 Dawn of Modern Physics MCQ`s Test
-
F Farzand Shah Farzand Shah 01 - Jun - 2024 01 Min 03 Sec 60/60 -
D David Navid 28 - Mar - 2024 02 Min 29 Sec 60/60 -
M Maryam afzal Maryam afzal 25 - May - 2024 09 Min 18 Sec 60/60 -
A Arian Ahmed 09 - Mar - 2024 00 Min 27 Sec 55/60 -
C Chhabibullah1492 Habib 06 - Mar - 2024 05 Min 29 Sec 55/60 -
H Huzaifa Asim 26 - May - 2024 09 Min 46 Sec 55/60 -
S suzi 11 - Feb - 2026 00 Min 43 Sec 52/60 -
B Bilal Javed 02 - Jun - 2024 03 Min 49 Sec 50/60 -
A Abdullah Zubair 08 - Jan - 2025 04 Min 17 Sec 50/60 -
M Muhammad Sufyan 01 - Jun - 2024 00 Min 08 Sec 45/60 -
M Maida Naveed 24 - May - 2024 03 Min 14 Sec 45/60 -
U umaima mubashar 31 - May - 2024 06 Min 17 Sec 45/60 -
F Fiza Saleem 03 - Dec - 2024 09 Min 36 Sec 45/60 -
T Tamshi Sohail 02 - May - 2024 03 Min 48 Sec 40/60 -
R rubina kousar 01 - Jun - 2024 04 Min 22 Sec 40/60
ECAT Physics Chapter 19 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The special theory of relatively treats the problems involving: |
A. Inertial frames of reference
B. Non-inertial frames
C. Non-accelerated frame
D. Botha (A) and (C)
|
| 2 | Which of the following is not an example of intertial frame |
A. a body placed on the surface of earth
B. a body placed in a car moving with uniform velocity
C. a body placed in a car moving with same acceleration
D. none of these
|
| 3 | The energy of a photon in a beam of infrared radiation of wavelength 1240 nm is |
A. 100 ev
B. 106e v
C. 103e v
D. 1.0 e v
|
| 4 | In the compton's effect, it is found that the wavelength of incident x-rays is |
A. greater than the wavelength of scattered x-rays
B. equal to the wavelength of scattered x-rays
C. less than the wavelength of scattered x-rays
D. any one of these
|
| 5 | A bar 1.0 m in length and located along x-axix moves with a speed of 0.75 c with respect to a stationary observer. The length of the bar as measured by the stationary observer is |
A. 1.66 m
B. 1.0 m
C. 0.66 m
D. 2.66 m
|
| 6 | Wave nature of particle was proposed by |
A. Einstein
B. Plank
C. De-Brogile
D. Max well
|
| 7 | In order to produce pair production, a photon must have a energy |
A. 0.511 Me v
B. 0.256 Me v
C. 1.02 Me v
D. 0.956 Me v
|
| 8 | Pair production is the phenomenon in which |
A. matter is converted into energy
B. energy is converted into matter
C. light is converted into electrical energy
D. electrical energy is converted into light
|
| 9 | According to the de-Brogile relation, an object of large mass and ordinary speed has |
A. very small wavelength
B. very large wavelength
C. very small frequency
D. all of these
|
| 10 | Albert Einstein got the Nobel prize in physics for his explanation of photoelectric effect in |
A. 1916
B. 1919
C. 1921
D. 1923
|
Test Questions
Share your comments & questions here
hasnain
30 May 2018no