Physical World And Measurement Objective Questions Pdf

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They are Gravitational force, Electromagnetic force, Weak nuclear force and strong nuclear force. Maxwell theoretically explained the existence of electromagnetic waves, but the electromagnetic waves were first generated in the laboratory by H Rudolf Hertz.

physical world mcq for neet

Heinrich Rudolf Hertz was a German physicist who first conclusively proved the existence of the electromagnetic waves predicted by James Clerk Maxwell's equations of electromagnetism. Werner Karl Heisenberg was a German theoretical physicist and one of the key pioneers of quantum mechanics. Niels Henrik David Bohr was a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory, for which he received the Nobel Prize in Physics in Marie Curie became the first woman to be awarded the nobel prize and the first person to obtain two nobel prizes when she won the prize for the discovery of Polonium and Radium in Though it was Henri Becquerel that discovered radioactivity, it was Marie Curie who coined the term.

The radioactivity of uranium was discovered in by Henri Becquerel. The strong nuclear force , also called the strong nuclear interaction , is the strongest of the four fundamental forces of nature.

He was the first to demonstrate radio communication with millimetre wavelengths, which fall in the 30GHz to GHz spectrum. The theory of special relativity explains how space and time are linked for objects that are moving at a consistent speed in a straight line. One of its most famous aspects concerns objects moving at the speed of light.

A photocell is a practical application of the phenomenon of photoelectric effect. When light of frequency greater than the threshold frequency of the cathode material falls on the cathode, photoelectrons are emitted. These electrons are collected by the anode and an electric current starts flowing in the external circuit. The current increases with the increase in the intensity of light. The current would stop, if the light does not fall on the cathode.

Login New User. Sign Up. Forgot Password? New User? Continue with Google Continue with Facebook. Gender Male Female. Create Account. Already Have an Account? The solved questions answers in this Test: Physical World- 1 quiz give you a good mix of easy questions and tough questions.

Which scientist does not belong to Germany? Solution: Heinrich Rudolf Hertz was a German physicist who first conclusively proved the existence of the electromagnetic waves predicted by James Clerk Maxwell's equations of electromagnetism. Who discovered radioactivity? Solution: Marie Curie became the first woman to be awarded the nobel prize and the first person to obtain two nobel prizes when she won the prize for the discovery of Polonium and Radium in Which is the strongest fundamental force of nature?

Solution: The strong nuclear force , also called the strong nuclear interaction , is the strongest of the four fundamental forces of nature. Which force operates among the heavier elementary particles? Solution: Strong nuclear force operates among the heavier elementary particles and the nucleons.

Electromagnetic force is stronger than gravitational force by a factor of:. Solution: Electromagnetic force is stronger than gravitational force by a factor of 10 The wave nature of electrons is used in which of the following devices?

Solution: Electron microscope uses the wave nature of electrons for its functioning. On which laws, is the principle of rocket propulsion based? Solution: Propulsion is the act of moving or pushing an object forward. A propulsion system is an engine that produces thrust to push an object, such as an airplane or rocket, forward.

The phenomenon of Photoelectric effect is used in. Solution: A photocell is a practical application of the phenomenon of photoelectric effect. Recommended Content. How to prepare for JEE for Maths? Recommended Tests. Related tests. Test: Physical World- 1 Test 10 questions 10 min. Test: Physical World- 2 Test 30 questions 30 min.

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Test: Physical World- 1

This action cannot be undone. This will permanently delete All Practiced Questions. Planck's constant h ,speed of light in vacuum c and Newton's gravitational constant G are three fundamental constants. Which of the following combinations of these has the dimensions of length? If force F , velocity v and time T are taken as fundamental units, then the dimensions of mass are. In a system of units in which unit of length is 10cm and unit of mass is g, yhen the value of density of material in this system will be-. A student measures the distance traversed in free fall of a body, initially at rest in a given time.

This CBSE paper and worksheet can be instrumental in students achieving maximum marks in their exams. These Papers and worksheets help students gain confidence and make them ready to face their school examinations. These Papers and worksheets school wise, covers important concepts from an examination perspective. One can use these papers and worksheets to get extensive practice and familiarise themselves with the format of the question paper. It should be clear, legible and genuine.

The radioactive element radium was discovered by Marie Curie. The principle used in rocket propulsion is Newton's laws of motion. It works on the principle like for every action there is an equal and opposite reaction. When the gases are ejected down after combustion as an opposite reaction, the rocket moves upward. The study about molecular, atomic and nuclear phenomena comes under Microscopic domain. It involves the study about the atoms, molecules and fundamental particles, which are very small. Whereas the phenomenon at astronomical scale comes under Macroscopic domain.


Physical World and Measurement MCQ Practice Sheets. Units, Measurements & Dimensions MCQs Sheet 1 · Errors and Vectors MCQ Questions Sheet 1.


Physical World and Measurement- NEET Physics MCQs & Study Notes

Skip to content. The questions are objective in nature and resemble the difficulty level and pattern of the actual exams. I have a problem on 1. Explanation are given for understanding.

Multiple Choice Questions for important part of exams for Grade 11 Physics and if practiced properly can help you to get higher marks. The man who is known as the Father of Experimental Physics is. Science is exploring, Here, x and y refer to.

Multiple Choice Questions. The unit of this expression is. The length of a body is measured as 3.

Прямо перед ним, откинувшись на груду старых подушек, лежал пожилой человек с ярко-белой гипсовой повязкой на правом запястье.

Topic: UNIT I: Nature of Physical World and Measurement (Test 1)

 Нет! - отрезала Сьюзан.  - Он стал калекой из-за этих бомб. И он знал про них .

Не сбиваясь с курса. Именно эта целеустремленность всегда изумляла, эта неколебимая верность принципам, стране, идеалам. Что бы ни случилось, коммандер Тревор Стратмор всегда будет надежным ориентиром в мире немыслимых решений. - Так ты со мной, Сьюзан? - спросил. Сьюзан улыбнулась: - Да, сэр.

Никогда. Внезапная пустота, разверзшаяся вокруг него, была невыносима. Сьюзан равнодушно смотрела на ТРАНСТЕКСТ. Она понимала, что огненный шар, заточенный в керамическую клетку, скоро вырвется наружу и поглотит. Она почти физически ощущала, как этот шар поднимается вверх все быстрее, пожирая кислород, высвобождаемый горящими чипами. Еще немного - и купол шифровалки превратится в огненный ад.

UNIT I: Physical World and Measurement MCQ Practice Sheets

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Сьюзан хотелось потянуть шефа назад, в безопасность его кабинета. В кромешной тьме вокруг ей виделись чьи-то лица. На полпути к ТРАНСТЕКСТУ тишина шифровалки нарушилась. Где-то в темноте, казалось, прямо над ними, послышались пронзительные гудки. Стратмор повернулся, и Сьюзан сразу же его потеряла.

Для расшифровки Беккеру нужно было всего лишь подставить вместо имеющихся букв те, что следовали непосредственно за ними: А превращалось в В, В - в С и так далее. Беккер быстро проделал это со всеми буквами. Он никогда не думал, что четыре слова могут сделать его таким счастливым: IM GLAD WE MET Что означало: Я рада, что мы встретились. Он быстро нацарапал на программке ответ и протянул Сьюзан: LDSNN Сьюзан, прочитав, просияла. ME TOO, что означало: Я .

 Коммандер, - все же возразила она, - это слишком крупная неприятность, и с ней не стоит оставаться наедине. Вам следовало бы привлечь кого-то. - Сьюзан, появление Цифровой крепости влечет за собой очень серьезные последствия для всего будущего нашего агентства. Я не намерен информировать президента за спиной директора. У нас возник кризис, и я пытаюсь с ним справиться.

4 Comments

  1. Annette G. 13.04.2021 at 20:29

    Heinrich Rudolf Hertz was a German physicist who first conclusively proved the existence of the electromagnetic waves predicted by James Clerk Maxwell's equations of electromagnetism.

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