TNPSC physics notes pdf in English

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TNPSC physics notes pdf in English:- Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, with its main goal being to understand how the universe behaves. As a language model, I can provide you with some general information about physics and help you create some physics notes, if that’s what you need.

Physics is the study of matter and energy and the interactions between them. It seeks to understand how the universe behaves, from the smallest subatomic particles to the largest structures in the universe. Here are some of the key concepts in physics:

Mechanics: The study of motion, forces, and energy.
Thermodynamics: The study of heat and temperature and their relationship to energy and work.
Electromagnetism: The study of electric and magnetic fields and their interactions.
Quantum Mechanics: The study of the behavior of matter and energy on a very small scale, such as atoms and subatomic particles.
Relativity: The study of the relationship between space and time and how they are affected by the presence of matter and energy.
Astrophysics: The study of celestial objects and phenomena, including stars, planets, galaxies, and the universe as a whole.
These are some of the broad areas of study in physics, and each of them is comprised of many specific concepts and theories. If you need information on a specific topic within physics, please let me know and I’d be happy to help.

Download General Science Notes PDF

Physics is a branch of science that deals with the study of matter and energy and their interactions. It seeks to understand and explain a wide range of physical phenomena, from the smallest subatomic particles to the largest structures in the universe. There are many different theories within physics, each of which offers a different perspective on the natural world. Here are a few of the most well-known and influential physics theories:

Newtonian Mechanics: Developed by Sir Isaac Newton in the 17th century, this theory describes the behavior of objects under the influence of forces. It provides the foundation for classical mechanics and has been extremely successful in explaining the motion of everyday objects and astronomical bodies.

Relativity: There are two theories of relativity: special relativity and general relativity. Special relativity, developed by Albert Einstein in 1905, describes the behavior of objects moving at constant speeds relative to one another. General relativity, developed by Einstein in 1915, is a theory of gravitation that describes the behavior of objects in a gravitational field.

Quantum Mechanics: This theory, developed in the first half of the 20th century, provides a description of the behavior of matter and energy on a very small scale, such as the scale of atoms and subatomic particles. It is the basis for our understanding of modern physics and has been extremely successful in explaining a wide range of physical phenomena.

The Standard Model of Particle Physics: This theory describes the fundamental building blocks of matter and the forces that govern their behavior. It is the most widely accepted theory in particle physics and has been extremely successful in explaining a wide range of experimental results.

These are just a few of the many theories that make up the field of physics. Each theory provides a different perspective on the natural world and helps us to understand the behavior of matter and energy in different contexts.

There are several branches of physics, including:

Classical Physics: This is the study of the motion of objects and their interactions in the absence of quantum effects. It includes mechanics, thermodynamics, electromagnetism, and optics.

Quantum Physics: This is the study of the behavior of matter and energy at the atomic and subatomic scale. It deals with the principles of quantum mechanics and quantum field theory.

Relativity: This is the study of the laws of physics that govern the behavior of objects at high speeds. It includes special and general relativity.

Astrophysics: This is the study of the physical and chemical properties of objects in the universe, including stars, galaxies, and cosmology.

Particle Physics: This is the study of the fundamental particles of matter and the forces that govern their behavior.

Condensed Matter Physics: This is the study of the physical properties of matter in its solid and liquid states. It includes solid-state physics, materials science, and nanotechnology.

Thermodynamics: This is the study of heat, temperature, and the relationships between them.

Electromagnetism: This is the study of the behavior and interactions of electrically charged particles and magnetic fields.

These are just a few of the branches of physics, and many areas of physics overlap and interact with one another.

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Most Important physics Question Answer

Q1) Which alloy is used to make clock pendulums:
A) Mischmetal
B) Invar
C) Brass
D) None of the Above

Q2) When the red light is exposed on a yellow flower, it will appear ________ in color:
A) Yellow
B) Orange
C) Black
D) Red

Q3) Longitudinal waves can’t travel through:
A) Solid
B) Vacuum
C) Gas
D) None of These

Q4) Rose appears red in sunlight, but the same Rose appears __________ in green light:
A) Red
B) Black
C) Green
D) Yellow

Q5) The current flowing in one direction is called _______:
A) Alternating Current
B) Induced Current
C) Direct Current
D) Ionic Current

Q6) When detergent is added to water, the surface tension will:
A) Increases
B) Decreases
D) No Change
D) Become Zero

Q7) What is the correct formula for Angular Momentum:
A) L= r×p
B) L= r.p
C) L= p×r
D) L= p.r

Q8) What is the unit of measurement for the universal gravitational constant:
A) Nm/Kg²
B) Nm²/Kg
C) Nm²/Kg²
D) Nm²Kg²

Q9) Rockets work on the principle of:
A) Newton’s First Law
B) Newton’s Second Law
C) Newton’s Third Law
D) Archimedes Principle

Q10) Tesla is a unit of magnetic ________:
A) Flux
B) Induction
C) Moment
D) Field

Physics GK Questions Download Link Below
Q11) Doppler’s effect is associated with:
A) Electric Current
B) Light
C) Heat
D) Sound

Q12) What is the unit of noise pollution:
A) Decibel
B) Decimal
C) ppm
D) Hertz

Q13) Temperatures in centigrade and Fahrenheit are the same at:
A) 32°
B) 40°
C) -40°
D) -273°

Q14) Butter paper is an example of a ______ object:
A) Transparent
B) Translucent
C) Opaque
D) Luminous

Q15) Which of the following is not a part of the AC generator:
A) Slip Rings
B) Coil
C) Commutator
D) Galvanometer

Q16) What is the measuring unit for the length of light waves:
A) Barrel
B) Angstrom
C) Knot
D) Carat

Q17) A magnifying glass comprises a simple:
A) Convex Lens
B) Convex Mirror
C) Concave Lens
D) None of These

Q18) The intensity ratio of waves is 25:9. What is the ratio of their amplitudes:
A) 5:3
B) 3:5
C) 25:9
D) 50:18

Q19) Plank constant has the dimensions of:
A) Energy
B) Linear Momentum
C) Angular Momentum
D) Force

Q20) 1 CLS unit is equals to:
A) 1.2 Times the Mass of the Sun
B) 1.3 Times the Mass of the Sun
C) 1.4 Times the Mass of the Sun
D) 1.6 Times the Mass of the Sun

Q21) What is the complete form of RADAR:
A) Radio Detecting and Ranging
B) Radio Device and Ranging
C) Radio Detects and Range
D) Region Device and Ranging

Q22) The rate of change in displacement over time is called _______:
A) Acceleration
B) Speed
C) Velocity
D) None of These

Q23) The _______ lens is thick at the middle and thin at the edges:
A) Concave
B) Convex
C) Bifocal
D) None of These

Q24) Which of the following metals has the greatest thermal and electrical conductivity:
A) Silver
B) Copper
C) Iron
D) None of These

Q25) The Tyndall effect is due to:
A) Scattering of Light
B) Dispersion of Light
C) Refraction of Light
D) Reflection of Light

Q26) Fulminology is the study of:
A) Volcanic Eruptions
B) Lightening
C) Natural Gases
D) Atmosphere

Q27) Which of the following statements is always true:
A) Displacement > Distance
B) Displacement < Distance
C) Displacement = Distance
D) None of These

Q28) The whistle of a fast-moving rail engine is heard ascending-descending when it crosses the station; it is called:
A) Peltier Effect
B) Doppler Effect
C) Ultrasonic Voice
D) Subsonic Effect

Q29) The velocity of sound doesn’t affect:
A) Heat
B) Medium
C) Pressure
D) Humidity

Q30) Curie is a unit of:
A) Current
B) Voltage
C) Luminous Intensity
D) Radioactivity

Q31) A diode is used for:
A) Modulation
B) Oscillation
C) Amplification
D) Rectification

Q32) The scientist associated with flotation is:
A) Archimedes
B) Newton
C) Louis Pasteur
D) None of These

Q33) The unit of Viscosity is:
A) Poise
B) Pascal
C) Poiseuille
D) None of These

Q34) Acceleration is inversely proportional to:
A) Force
B) Velocity
C) Mass
D) Distance

Q35) Which among the following waves can’t be polarized:
A) Sound
B) Radio
C) Infrared
D) Ultraviolet

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Q36) What is the frequency of direct current:
A) 50 Hz
B) 60 Hz
C) Zero
D) Infinite

Q37) The value of acceleration due to gravity at the equator will _______ when the earth stops rotating:
A) Increase
B) Decrease
C) Become Zero
D) Remains Same

Q38) Which of the following is used in the oven:
A) X-Rays
B) UV Rays
C) Microwaves
D) Radio Waves

Q39) Who enunciated the laws of planetary motion:
A) Nicolaus Copernicus
B) Johannes Kepler
C) Issac Newton
D) Galileo

Q40) Which of the following diodes is most commonly used as a voltage regulator:
A) LED
B) Zener Diode
C) Var actor Diode
D) Tunnel Diode

Q41) Gamma rays can cause:
A) Gene Mutation
B) Sneezing
C) Burning
D) Fever

Q42) Hydraulic machines work on the principle of:
A) Newton’s Law
B) Joule’s Law
C) Pascal’s Law
D) Flotation Law

Q43) Name the commercial unit of electric energy:
A) Kwh
B) Ampere
C) Volt
D) Ohm

Q44) One calorie is equal to:
A) 1.284J
B) 4.186J
C) 6.418J
D) 8.146J

Q45) What is the refractive index of a diamond:
A) 1.44
B) 1.47
C) 1.77
D) 2.42

Q46) The upward force on a floating body is called ______:
A) Jerk
B) Buoyancy
C) Archimedal Force
D) Anti Gravity

Q47) Which colour is formed when Yellow and Cyan are mixed:
A) Red
B) Green
C) Blue
D) White

Q48) _____ are used in RADAR systems:
A) Ultraviolet
B) Infrared
C) Radio Waves
D) All of These

Q49) 10⁴ Fermi is equal to:
A) 1 Meter
B) 100 Micron
C) 1 Angstrom
D) 0.1 Angstrom

Q50) Rad/sec is the unit of:
A) Angular Displacement
B) Angular Velocity
C) Angular Acceleration
D) None of These

Q51) 1 Micron is equal to:
A) 100 mm
B) 1000 mm
C) 0.01 mm
D) 0.001 mm

Q52) Which of the following is an auxiliary unit:
A) Radian
B) Steradian
C) Ampere
D) Both A and B

Q53) _____ is used to examine the internal parts of our body:
A) Microscope
B) Periscope
C) Odometer
D) Endoscope

Q54) Which instrument is used to measure the height or elevation:
A) Micrometre
B) Telemeter
C) Hypsometer
D) Tonometer

Q55) To measure the strength of direct current _____ is used:
A) Tachometer
B) Spectrometer
C) Voltmeter
D) Tangent Galvanometer

Q56) Find out the true statements regarding thermal conductivity:
A) Steel>Wood>Water
B) Steel>Water>Plastic
C) Water>Wood>Steel
D) Water>Steel>Plastic

Q57) As the temperature increases, the thermal conductivity of the solid metal ______:
A) Increases
B) Decreases
C) Remains Same
D) None of These

Q58) _____ is the external energy applied on a body to change its state of rest or uniform motion:
A) Force
B) Pressure
C) Buoyancy
D) Impulse

Q59) If a car is running at a speed of 72 km/hr and stops after 45 seconds, then what will be the retardation:
A) 0.3 m/s²
B) 0.25 m/s²
C) 0.44 m/s²
D) 3 m/s²

Q60) Surface tension depends on:
A) Atmospheric Pressure
B) Nature of the Liquid
C) Temperature of the Liquid
D) All of These

Q61) The matric system is also called:
A) CGS
B) MKS System
C) SI
D) None of These

Q62) Plane angle and solid angle are:
A) Fundamental Quantity
B) Derived Quantity
C) Supplementary Quantity
D) None oy These

Q63) Which one of the following is not a secondary pigment:
A) Green
B) Red
C) Blue
D) Yellow

Q64) When you look at a mirror, the image you see in the mirror is a __________ image:
A) Virtual
B) Real
C) Reflected
D) Plain

Q65) What type of spectrum is the rainbow:
A) Natural Spectrum
B) Artificial Spectrum
C) Both A and B
D) None of These

Q66) Which of the following has no units:
A) Thermal Capacity
B) Magnetic Susceptibility
C) Angular Acceleration
D) None of These

Q67) The primary cause of motion is:
A) Velocity
B) Acceleration
C) Force
D) Energy

Q68) Gravitational mass is a _______ quantity:
A) Vector
B) Scalar
C) Tensor quantity
D) None of the above

Q69) The momentum of a body depends:
A) Only on its Velocity
B) Only on its Mass
C) Both A and B
D) None of the Above

Q70) The force acting on a body is always parallel to:
A) Velocity
B) Acceleration
C) Momentum
D) None of the Above

Q71) A body whose momentum is a constant must have a constant:
A) Acceleration
B) Force
C) Velocity
D) None of These

Q72) The motion of a bicycle wheel is:
A) Translatory
B) Rotary
C) Both A and B
D) Curvilinear

Q73) Force × time = _________:
A) Momentum
B) Impulse
C) Force
D) None of These

Q74) Inertia is proportional to:
A) Mass
B) Weight
C) Length
D) Height

Q75) The dimensional formula of the Planck’s constant is:
A) [ML2T-2]
B) [MLT]
C) [M2L2T3]
D) [ML2T-1]

Q76) Light cannot be polarized by:
A) Reflection
B) Diffraction
C) Refraction
D) All of These

Q77) Total internal reflection would takes place if:
light passes:
A) From Air to Water
B) From Water to Glass
C) From Glass to Diamond
D) From Glass to Water

Q78) If the length of a pendulum is doubled and the diameter of its ball is reduced to half, it’s time period will be:
A) √2
B) Half
C) Remains Same
D) Double

Q79) A particle is thrown upwards at a speed of 39.2 m/s. Calculate it’s time for maximum height:
A) 3 Sec
B) 4 Sec
C) 5 Sec
D) 6 Sec

Q80) Electric wires are generally coated with:
A) Polypropylene
B) Polyvinyl Chloride
C) Polyurethane
D) Polyethylene

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TNPSC physics notes pdf in English