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	Max plank received the Nobel Prize in physics for his discovery of energy quanta in	A. 1900 B. 1906 C. 1912 D. 1918
2	Intensity of light determines the:	A. Energy of each photon B. Number of photons C. Speed of photons D. Size of photons
3	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
4	Electromagnetic -radiation means:	A. Photons B. protons C. Electrons D. Mesons
5	Which one of the following physical quantities changes with relativistic speed	A. Length B. Mass C. Time D. All of the above
6	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
7	G.P. Thomson observer experimentally that electrons and neutrons possess	A. particle-like properties B. wave-like properties C. neither particle nor wave like properties D. none of these
8	The ratio of energy E to the corresponding frequency (f) of the radiation (emitted or absorbed) is called:	A. Wien's constant B. Stefen's constnat C. Planck's constant D. Boltzmann's constant
9	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
10	The mass 'm' of a body moving at 0.8 c (whose rest mass is mo) becomes	A. 2 mo B. 1.67 mo C. 0.67 mo D. 2.67 mo

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

According to the special theory of relativity, time is

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

Wien's constant is measured in:

The energy of the 4th orbit in hydrogen atom is

The concept of direction and position are purely

The value of the Stephen's constant for black body radiations is given by

S.I. unit of planks constant is

The general theory of relativity treats problems involving

Momentum is a parameter associated with

A particle of mass 5.0 mg moves with a speed of 8.0 m/s. Its de-Brogile wavelength is

The ratio of energy E to the corresponding frequency (f) of the radiation (emitted or absorbed) is called:

Max plank founded a mathematical model resulting in an equation that describes the shape of observed black body radiation curves exactly, in

According to the special theory of relativity

If a body reaches a speed equal to the speed of light, then its mass will became

At the temperature, a body emits radiation which is principally

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

Davision and Germer performed experiment to verify

According to the special theory of relativity, a moving clock

The whole shape of the black body spectrum for all wavelengths was explained by the formula proposed by

Compton shift refers to:

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

When a high energy photon interact with a metal, which of the following effect is most likely to be taken place

The energy of a photon is represented by

An intertial frame of reference is a frame of reference which is

According to Einstein, with the great increase in the speed of the body, the relativistic mass of the body

When a position comes close to an electron they annihilate into

The Nobel Prize on the explanation of photoelectric effect was awarded to:

Converse of pair production is known as

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

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

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?