ECAT Pre General Science Chapter 19 online mcq test with answers for Physics chapter 19 (Dawn of Modern Physics)

Top Scorers Of ECAT Pre General Science Physics Chapter 19 Dawn of Modern Physics MCQ`s Test

A

Asghar Ali 03 - Mar - 2021 10 Min 50 Sec 100/120
S

shamsuddin 19 - Aug - 2021 10 Min 50 Sec 75/120
K

khadim Hussain 03 - Mar - 2021 10 Min 50 Sec 75/120
A

Ali ahmad 19 - Jul - 2018 09 Min 44 Sec 70/120
A

Aarij 08 - Dec - 2024 02 Min 25 Sec 65/120
W

Waleed Ahmed 26 - Feb - 2023 10 Min 00 Sec 65/120
Z

Ziyad Rehman Sheikh 16 - Nov - 2022 07 Min 21 Sec 40/120
M

maha 01 - Mar - 2023 04 Min 24 Sec 35/120

ECAT Physics Chapter 19 Important MCQ's

Sr.#	Question	Answer
1	The existence of position was predicted by Dirace in	A. 1920 B. 1925 C. 1930 D. 1928
2	The year when A.H. compton was awarded Nobel Prize is:	A. 1923 B. 1927 C. 1931 D. 1935
3	A photon is considered to have	A. Momentum B. Energy C. Wavelength D. All of the above
4	In photoelectric effect the energy of ejected electrons depend on	A. The frequency B. The intensity C. Both frequency and intensity D. None of these
5	Davision and Germer performed experiment to verify	A. de-Brogile hypothesis B. theory of relativity C. Newton's law of gravitation D. Mass-energy relation
6	If you are moving at relativistic speed between two points that are a fixed distance apart, then the distance between the two points appers	A. larger B. shorter C. equal D. none of these
7	Photoelectric effect takes place with a photon of:	A. Very high energy B. Very low energy C. Low energy D. High energy
8	de-Broglies hypthesis was experimentally verified by	A. Maxwell B. Compton C. Einstein D. Davison and Germer
9	If a material object moves with the speed of light 'C' its mass becomes	A. Equal to its rest mass B. Four times of its rest mass C. Double of its rest mass D. Infinite
10	The value of the Stephen's constant for black body radiations is given by	A. 5.6 x 10⁸Wm^-2K^-4 B. 5.67 x 10^-8Wm^-2K^-4 C. 2.9 x 10^-3mK D. 2.9 x 10³mK

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students

ECAT Pre General Science Physics Chapter 19 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 19 Dawn of Modern Physics

ECAT Pre General Science Physics Chapter 19 Dawn of Modern Physics

The positron was discovered by:

Compton shift refers to:

The location and speed anywhere on earth can now be determined using relativistic effects by NAVISTAR to an accuracy of

The year when A.H. compton was awarded Nobel Prize is:

Intensity of light determines the:

Compton derived an expression to find compton shift by applying to the process, the law of conservation of:

If a material object moves with the speed of light 'C' its mass becomes

When a platinum wire is heated, it appears white at

The analysis of the distribution of wavelengths of the radiation emitted from a hot body set the foundation of new mechanics, known as

Max Planck received the Nobel Prize for his discovery of energy quants in:

When a platinum wire is heated, it appears dull red at about

A high temperature, the proportion of shorter wavelengths radiation, emitted by the body

Current, voltage, resistance measuring circuit is connected with the galvanometer with the help of switch, known as

Wien's constant is measured in:

Compton studied the scattering of x-rays by loosely bound electrons from:

In order to produce pair production, a photon must have a energy

the symbol to be used in relativity problems denotes:

Wave nature of particle was proposed by

The concept of direction and position are purely

The nature of radiations emitted by a hot body depends upon its:

Electromagnetic -radiation means:

Albert Einstein got the Nobel prize in physics for his explanation of photoelectric effect in

The Einstein's changes in length, mass and time are not observed in common life because

Practically the quantity v/c is always:

The length contraction happens only

The emission of electrons from a metal surface when exposed to light of suitable frequency is called the

According to the special theory of relativity

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

The threshold frequency of sodium is 6 x 106MHz. The cut-off wavelength for this metal will be

Davision and Germer performed experiment to verify

Prepare Complete Set Wise ECAT Pre General Science Physics Chapter 19 Dawn of Modern Physics MCQs Online With Answers

Set 1

Set 2

Set 3

Set 4

Set 5

Topic Test

Top Scorers Of ECAT Pre General Science Physics Chapter 19 Dawn of Modern Physics MCQ`s Test

ECAT Physics Chapter 19 Important MCQ's

Test Questions

Is this page helpful?

Share your comments & questions here

The threshold frequency of sodium is 6 x 10⁶MHz. The cut-off wavelength for this metal will be