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	Photoelectrons are emitted when ultraviolet light falls on:	A. Casium B. Silver C. Potassium D. Any of these
2	The concept of direction and position are purely	A. absolute B. relative C. absolute or relative D. none of these
3	The emission of electrons from a metal surface when exposed to light of suitable frequency is called the	A. pair production B. Compton effect C. photoelectric effect D. relativity
4	When a high energy photon interact with a metal, which of the following effect is most likely to be taken place	A. pair production B. photoelectric effect C. Compton effect D. None of these
5	The way through which electromagnetic radiations or photons interact with matter depends upon their:	A. Wavelength B. Frequency C. Energy D. Temperature
6	As compared to the distance measured by an observer on Earth, the distance from Earth to a star measured by an observer in a moving spaceship would seem:	A. Smaller B. Lerger C. Same D. Much larger
7	The photoelectric effect, the maximum energy of photoelectrons depends on the	A. particular metal surface B. frequency of incident light C. both of them D. none of them
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	Strictly speaking, the earth is:	A. An accelerated frame of reference B. A non-inertial frame of reference C. An inertial frame of reference D. ^{A non-accelerated frame of reference}
10	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

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

If the radius of first orbit of hydrogen atom is 0.53° A the radius of second orbit will be

G.P. Thomson observer experimentally that electrons and neutrons possess

The special theory of relativity is based on:

According to the special theory of relativity, a moving clock

Wave nature of particle was proposed by

The unit of work function is:

Which one of the following physical quantities changes with relativistic speed

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

Photoelectric effect takes place with a photon of:

Photocell is a device which converts

According to the special theory of relativity, time is

As the light shines on the metal surface, the electrons are ejected

The way through which electromagnetic radiations or photons interact with matter depends upon their:

The energy of photon 'E' is proported to

The inside cavity of the black body is

A photon is considered to have

Which of the following phenomenon proves the particle nature of light

According to the Max plank, energy is redialed or absorbed in

0.1 kg mass will be equivalent to the energy

Pair production is the phenomenon in which

Momentum is a parameter associated with

Newton's law of motion do not hold in

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

The idea of quantization of energy was proposed by:

The special theory of relativity is based on the

Davision and Germer performed experiment to verify

A particle having mass and charge equal to that of an electron is called:

The photon of radio-waves has energy of about

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

In photoelectric effect the energy of ejected electrons depend on

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

Share your comments & questions here