MCQExams
0:0:1
CBSE
JEE
NTSE
NEET
Practice
Homework
×
CBSE Questions for Class 11 Engineering Physics Physical World Quiz 8 - MCQExams.com
CBSE
Class 11 Engineering Physics
Physical World
Quiz 8
The force resulting due to the action of muscles is known as the _____ force.
Report Question
0%
Contact
0%
Muscular
0%
Friction
0%
Magnetic
Explanation
The force resulting due to the action of muscles is known as the muscular force. It involves activities like movement or bending the body.
A force acting between two bodies in contact is called contact force, e.g., frictional force, etc.
A force that resists the sliding or rolling of one solid object over another is called friction force.
A force of attraction or repulsion that arises between electrically charged particles because of their motion is called magnetic force.
Hence, the correct answer is option B.
In which of the following layers of the atmosphere most of the ozone is present ?
Report Question
0%
Troposphere
0%
Exosphere
0%
Mesosphere
0%
Stratosphere
0%
None of these
Explanation
Ozone is present throughout the lower atmosphere (
troposphere
and stratosphere). Most ozone resides in the stratospheric “ozone layer” above
Earth's
surface.
Forces of adhesion are caused due to :
Report Question
0%
Magnetic attractions
0%
Gravitational attractrons
0%
Electrostatic attractions
0%
Frictional forces
Which of these is incorrect about nuclear forces ?
Report Question
0%
They are independent of charge
0%
Nuclear forces are derived from quark-quark interaction
0%
Hadrons do experience strong nuclear force
0%
Nuclear force is not central force
Explanation
$$\begin{array}{l}\text { Hadrons are subatomic composite porticle made of two(or) } \\\text { more quarks. They experpance strong nuclear force. }\end{array}$$
Birbal Salmi was related to which field of Science ?
Report Question
0%
Chemical Science
0%
Paleo-botany
0%
Physics
0%
Computer Science
Which of the following is not a research purpose?
Report Question
0%
triangulation
0%
explanation
0%
description
0%
exploration
If the doors of a refrigerator are left open for a few hours, the room temperature will?
Report Question
0%
Decrease
0%
Increase
0%
Remain the same
0%
Decrease only in the area in the vicinity of the refrigerator
"The three most important inventions of this century are the nuclear bomb, the high yield hybrid speed, and the computer". Can you name the person who made this statement?
Report Question
0%
Harry R Jordan
0%
Buckminster Fuller
0%
Jack Smith
0%
Jan Timmer
Choose the wrong statement :
Report Question
0%
The nuclear force becomes weak if the nucleus contains too many protons compared to the number of neutrons
0%
The nuclear force becomes weak if the nucleus contains too many neutrons compared to the number of protons
0%
Nuclei with atomic number greater than $$82$$ show a tendency to disintegrate
0%
The nuclear force becomes very strong if the nucleus contains a large number of nucleons
Explanation
$$\begin{array}{l}\text { The nuclear force becomes weak if the nucleus contains } \\\text { a large number of nucleons. } \\\text { A nucleous with high number of nucleons is unstable. }\end{array}$$
In the given figure $$Y$$, magnet $$P$$ is experiencing ____
(1) Magnetic force of repulsion (2) Magnetic force of attraction
(3) Elastic spring force (4) Gravity
Report Question
0%
1 and 3 only
0%
1 and 4 only
0%
2 and 3 only
0%
2 and 4 only
Explanation
$$\begin{array}{l}\text { Since like poles repul's each other the magnetic force } is \\\text { Pushing magnet } P \text { always, but due to gravity the weight }\end{array}$$
$$\begin{array}{l}\text { act's downward so it will reach an equilibrium position } \\\text { where net force on magnet p is zero. }\end{array}$$
When a vander waal's gas undergoes free expansion then its temperature
Report Question
0%
Decreases
0%
Increases
0%
Does not change
0%
Depends upon the nature of the gas
Explanation
$$\begin{array}{l}\text { when a vander waal's gas undergoes free expansion } \\\text { then its temperature decreases. }\end{array}$$
Sampling allows survey of large populations using questionnaires interviews provide in depth responses is called
Report Question
0%
Experiment
0%
Survey
0%
Observation
0%
Analysis
What was the biggest change in fundamental $$1$$, studies of systematic is:
Report Question
0%
Recognition of sharing of resources.
0%
Recognition of sharing of similarity.
0%
Recognition of sharing of physical law.
0%
Recognition of sharing of celestial body.
Explanation
$$\text { Recognition of sharing of resources. }$$
Name the first Indian Scientist who worked for the physical condition of the stars.
Report Question
0%
Birbal Sahni
0%
Satyendra Nath Bose
0%
Einstein
0%
Meghnad Saha
When was Indian mission Chandrayan-I launched ?
Report Question
0%
$$22$$ Oct. $$ 2008 $$
0%
$$5$$ Nov. $$2013$$
0%
$$15$$ Aug. $$2015$$
0%
$$28$$ Feb. $$2015$$
Who was called the father of plastic surgery ?
Report Question
0%
Charak
0%
Sushrat
0%
Kanad
0%
Patanjali
Bose-Einstein Statistics was initiated by:
Report Question
0%
J.C. Bose
0%
S.N. Bose
0%
Sri C.V. Raman
0%
Meghnad Saha
The word science is derived from :
Report Question
0%
Hindi
0%
Sanskrit
0%
Latin
0%
Arabian
Science is divided into main divisions :
Report Question
0%
One
0%
Two
0%
Three
0%
Four
Equation $$ 8x^2 + 1 = y^2 $$ is called as
Report Question
0%
Bhaskaracharya equation
0%
Euler equation
0%
Linear equation
0%
Pell's equation
Plants are sensitive like other livings beings who formulated this theory:
Report Question
0%
C.V. Raman
0%
C. Bose
0%
Meghnad Saha
0%
H.J Bhaba
J.C. Bose , Prafulla Chandra Ray, and D.N. Malik taught which scientist ?
Report Question
0%
Meghnad Saha
0%
Birbal Sahni
0%
S.N. Bose
0%
J.C. Bose
The knowledge of Astrophysics is given by:
Report Question
0%
Meghnad Saha
0%
J.C. Bose
0%
C.V. Raman
0%
Birbal Sahni
Who established National Academy of Science ?
Report Question
0%
S.N. Bose
0%
Meghnad Saha
0%
C. Bose
0%
Homi Jehangir Bhabha
Siddhanta Siromani is written by:
Report Question
0%
Aryabhatta
0%
Bhaskara
0%
Bhaskara II
0%
Varamihira
What is the meaning of the term 'alien' ?
Report Question
0%
Magic
0%
Extra terrestrial life
0%
Strange Creature
0%
A cow like animal
Explanation
In law, an alien is a person who is not a citizen or national of a given country, though definitions and terminology differ to some degree depending on the continent or region of the world. in short we can say 'alien' term is used for extra terrestrial life.
The scientific method is
Report Question
0%
a prescribed method for investigating phenomena, acquiring new knowledge
0%
a procedure for proposing new hypothesis
0%
a body of techniques for investigating phenomena, acquiring new knowledge.
0%
A method for proposing new theories
Explanation
Correct Answer: Option C
Explanation of correct answer:
The scientific method is a set of strategies for studying phenomena, gaining knowledge, and updating or correcting what is already known.
Therefore the correct answer is option (C).
Explanation for incorrect options:
Option A: The scientific approach entails formulating and testing a hypothesis to solve a theoretical problem.
Option B: When a set of hypotheses passes rigorous tests and is temporarily accepted as true, new knowledge arises.
Option D: Hypotheses are proposed by scientists as explanations for phenomena, and experimental studies are designed to test the hypotheses.
So, options (A,B and D) are incorrect. Therefore, the correct answer is option (C).
Physics is a
Report Question
0%
Applied Science
0%
Mathematical Science
0%
Engineering Science
0%
Natural Science
Explanation
Physics is study of natural phenomena and describing them, so it's natural science.
Atomic and molecular phenomena are dealt with by
Report Question
0%
Newtonian Mechanics
0%
fluid Mechanics
0%
applied Mechanics
0%
Quantum Mechanics
Explanation
Newtonian mechanics deals with application of Newton's laws and the motion of bodies under the influence of forces.
Fluid mechanics deals with mechanics of fluids at rest and motion.
Applies physics deals with various forces and their applications to engineering problems.
And quantum mechanics is physics at atomic and subatomic level, it deals with atomic and molecular phenomena.
Which of the following is a possible first step in applying the scientific method
Report Question
0%
Conducting tests
0%
Formulating a hypothesis
0%
Formulating of a question
0%
Building a theory
Explanation
Steps in applying scientific method are : - formulating a question, do research, formulation a hypothesis, conduct experiments to prove hypothesis, make observations, analyze result and draw conclusion.
So the first step is formulating a question.
0:0:1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
0
Answered
0
Not Answered
0
Not Visited
Correct : 0
Incorrect : 0
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Practice Class 11 Engineering Physics Quiz Questions and Answers
<
>
Support mcqexams.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page
