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	If A represents linear momentum and c, the velocity of light, then unit of pc in international system of units is:	A. Newton B. Joule C. Joule-Sec D. Joule-s^-1
2	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
3	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
4	Max Planck received the Nobel Prize for his discovery of energy quants in:	A. 1718 AD B. 1918 AH C. 1818 AD D. 1918 AD
5	Absolute motion cannot be detected	A. in its own frame of references B. in a different frame of references C. both in its frame and different frame of references D. none of these
6	If the radius of first orbit of hydrogen atom is 0.53° A the radius of second orbit will be	A. 2.120°A B. 0.212°A C. 21.2°A D. 0.14° a
7	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)
8	The energy of photon 'E' is proported to	A. The magnetic field H B. The electric field E C. Both the electric and magnetic field H and E D. Frequency
9	Photocell is a device which converts	A. chemical energy into electrical energy B. electrical energy into light energy C. heat energy into electrical energy D. light energy into electrical energy
10	Compton shift refers to:	A. Photon B. Meson C. Proton D. Positron

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 electromagnetic wave theory of light, increasing the intensity of incident light should increase the

When a platinum wire is heated, it appears yellow at

When a platinum wire is heated, it appears orange red at

The positron was discovered by:

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

Davision and Germer performed experiment to verify

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

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

The unit of work function is:

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

The photoelectric effect, the maximum energy of photoelectrons depends on the

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

The general theory of relativity treats problems involving

A black body is

Strictly speaking, the earth is:

If A represents linear momentum and c, the velocity of light, then unit of pc in international system of units is:

The special theory of relativity is based on:

Victor de-Brogile received the Nobel prize in physics in

The energy of a photon is represented by

Converse of pair production is known as

Electromagnetic radiation or photons interact with matter in

A non-inertial frame of reference is one, in which

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

The energy of a photon in a beam of infrared radiation of wavelength 1240 nm is

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

According to the special theory of relativity, a moving clock

Pair production is the phenomenon in which

If you are moving at relativistic speed between two points that are a fixed distance apart, then the distance between the two points appers

According to the special theory of relativity

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

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