Questions
1
Consider the following statements and select the correct statement(s).
I. Optics deal with the phenomena involving light.
II. Unification means physical phenomena in terms of few concepts and laws.
III. Macroscopic domain of Physics deals with the constitution and structure of matter at the minute scales of atoms and nuclei.
Answer:Only I
2
The scientific principle involves in production of ultra high magnetic fields is
Answer:super conductivity
3
Which of the following is true regarding the physical science?
Answer:Both (a) and (b)
4
Assertion : The concept of energy is central to Physics and expression for energy can be written for every physical system.
Reason : Law of conservation of energy is not valid for all forces and for any kind of transformation between different forms of energy.
Answer:Assertion is correct, reason is incorrect
5
The branch of science which deals with nature and natural phenomena is called
Answer:Physics
8
The person who has been awarded the title of the Father of Physics of 20th century is
Answer:Albert Einstein
9
Science is exploring, ...x... and ...y... from what we see around us. Here, x and y refer to
Answer:experiment, predict
10
The word Science originates from the Latin verb Scientia meaning
Answer:to know
11
Which of the following is a possible first step in applying the scientific method
Answer:Formulation of a question
12
A scientific theory
Answer:can be revised if required to fit new phenomenon or data
13
Just as a new experiment may suggest an alternative theoretical model, a theoretical advance may suggest what to look for in some for in some experiments. Which of the following experiments can be considered to support this claim?
Answer:experimental discovery of positron
14
Newtonian mechanics could not explain
Answer:Some of the most basic features of atomic phenomena.
17
The scientific method is
Answer:a body of techniques for investigating phenomena, acquiring new knowledge
18
Heliocentric theory proposed by Nicolas Copernicus was
Answer:replaced by elliptical orbits to fit the data better
19
Which of the following is a possible final step in applying the scientific method
Answer:Analysis of test results
20
A screw gauge with a pitch of 0.5 mm and a circular scale with 50 divisions is used to measure the thickness of a thin sheet of Aluminium. Before starting the measurement, it is found that when the two jaws of the screw gauge are brought in contact, the 45th division coincides with the main scale line and that the zero of the main scale is barely visible. What is the thickness of the sheet if the main scale reading is 0.5 mm and the 25th division coincides with the main scale line?
Answer:0.80 mm
Chapters
- Physical World
- Units and measurements
- Motion in a straight line
- Motion in a plane
- Laws of motion
- Work energy and power
- System of particles and rotational motion
- Gravitation
- Mechanical properties of solids
- Mechanical properties of fluids
- Thermal properties of matter
- thermodynamics
- Kinetic theory
- Oscillations
- Waves
