JKBOSE Class 10th Physics Notes PDF Download - JK NOTES

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JKBOSE Class 10th Physics Notes


Unit 1 -  Light- Reflection and Refraction  


Light is a form of energy, which creates and creates a sense of vision in our eyes۔ We are able to see the different things around us۔ 

Source of Light

Anything that has the ability to create light itself is called۔ Source of light. Such as sun, firefly, battery, cell candle, bulb, etc. 

Types of Sourcecof Energy

There are two main types of light sources such as: 
1) Natural sources:- These include all the sources that are natural and have۔ Your light such as  ⁇  stars, firefly etc.

2) Artificial Sources: - These include all the sources that are man-made or artificial۔ But light is capable of emitting, such as candle, lantern, moon, etc۔ 

Reflection of Light

This is an event of light in which a ray of light hits smooth in the form of a medium۔ The polish surface and return to the same medium۔  

Laws of Reflection

The two laws of reflection of light are:- 
1. All the three rays i.e incident ray, the normal and the reflected ray lie in the same plane. 

2. The angle made by incidence ray of light is equal to the angle made by  reflection of ray of light i.e., <i = <r

Refrection of Light

when a ray of light travels in a uniform medium, collides with the surface۔ Separation between the two media goes through it and into the second medium۔ The trend is called refractations.

JKBOSE Class 10th Physics Study Material Notes

Unit 2 -  The Human Eye and the Colorful World

The human Eye Structure 

The eye is the most important organ of the human body۔ It is visually intertwined and acts as an important one۔ Optical device. The human eye socket has two eyes attached۔ It is and is spherical in shape۔ Externally a hard thick and opaque layer called Sclerotica۔ The human eye is the most important۔ The organ is used to see beautiful nature and natural phenomena۔ The main parts of the eye and their functions are given below:  

1. Cornia: - It is a transparent part of the eye and allows the light to enter the eye۔ Also known as Cornia۔ Eye window or aperture

 2. Iris:- It is a round diaphragm with a hole in the center .This hole is called pupil۔ The circular diaphragm contains pieces and colored oils۔ The color of the eyes depends on their color۔ The work of the pigment iris is to control the amount of light through the thinness of the eye۔ With a sharp light on the eye, the student becomes smaller۔ However, when dim, it widens۔ Light 

 3. Lens:- Eye lens is a crystal line double convex lens and made of transparent and flexible tissues۔ This is that it is captured behind the student and through the muscles called Stefai Mistels۔ It focuses on images of objects۔ Eye retina. 

 4 Ciliary muscles: Ciliary muscles:-  They position the pithe eye lens۔ The solar controls the focal length of the muscles of eye lens. When these pieces shrink, the focal length of the lens increases۔ On the other hand, when they spread, they put internal pressure on the eye lens and reduce the focal length of the lens

5. Retina:-  It works as a screen to get a picture of something۔ It has a number of cells in its form۔ Stick and cones that are sensitive to light۔ These cells turn the energy of light into nerve movements۔ Signals 

 6. Optic nerve:-  Optic nerve: - Optic nerve is made of the nerve Libra from retina۔ It takes the nerves۔ Continuity or signal to the brain .The brain finally interprets the signal۔

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JKBOSE 10th Physics Study Material download

Unit 3 -  Electricity

Electric charge

This is one of the main properties of the material that is taken by some initial material۔ Particles. Electric charge, which can be positive or negative, occurs in single natural۔ Units are neither created nor destroyed۔

Types of Electric charges 

positive and negative۔ Two items with one type of charge, when relatively close  they put a retreat force on each other۔ Attract each other when two items with high opposite charges, one positively charged and the other negatively charged, relatively close

Many basic substances of matter, or sub-nuclear particles, feature electrical charge۔ For example, electrons have a negative charge and protons have a positive charge, but the neutron charge is zero۔ The negative charge of each electron is found from the experience۔ Having the same intensity, which is also equal to the positive charge۔ Each proton. Thus the charge is equal to the charge of an electron or a in natural units۔ Proton, a basic physical permanent۔

The unit of electrical charge in MKS and SI systems is Columbus۔ Contains a colum۔ 6.24 × 10¹⁸ coloumb of electrical charge, such as individual electrons or protons۔ The negative charge of a self-electron is 1.602176565 × 10−¹⁹ Columbus۔

Classic electric studies are usually divided into three general areas۔

Electrostatics: A study of the forces working between charges۔ 

Electrical Current: Study of energy forms associated with the flow of charge۔  

Electromagnetism: Study of forces working between motion charges۔

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JKBOSE Class 10th Physics  Notes pdf

Unit 4 -  Magnetic Effects of Current 


In physics, magnetism is one of the phenomena through which the material is used۔ Attractive or disgusting forces on other materials 


Magnet is a material or object that creates a magnetic field۔ This magnetic field is hidden but responsible for the most notable feature of the magnet: a force that draws۔ Other ferromagnetic materials, such as iron, and other magnets, are attracted or removed۔ 

Magnetic field  

Magnet with inside ( or space or region around the current carrying wire ) whose effect can be felt or magnetic force from other magnets Feel what he says۔ The magnetic field is extended along the direction of the magnetic field۔ At one point, the magnetic field is in the direction of the productive force that acts on a fictitious north۔ The poles are placed at this point۔

The needle is removed when the magnetic compass is brought near the magnet۔ The diameter of the the the compass indicates the direction of the magnetic field at the northern head point۔ Where it is kept۔ So the place or region around the magnet within which the magnetic is magnetic۔ The compass is deflected as the magnetic field of the bar magnet۔

Magnetic force lines

The magnetic lines of the force are not actually present but۔ Fantasy lines are used to describe and explain magnetic field patterns۔ The magnetic lines of the force emerge from the northern pole of the magnet, pass through the surrounding space and enter the South Pole۔ The lines of power travel inside again۔ Magnet from the South to the north۔ Thus, completing a closed loop.

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JKBOSE Class 10th Physics Notes pdf Download

Unit 5 -  Sources of Energy 


Whenever a body is able to work, it is said that the body has energy۔ Thus energy is defined as the body's ability to work and the amount of energy۔ The amount of work is equal to the amount of work by a body when it emits its energy۔ 

Energy sources

The source of energy is the one that has the potential to provide very useful۔ Energy at a stable rate in a long period of time 

Renewable energy sources

Renewable energy sources are what they are۔ Invincible, that is, which we can be replaced when using and used to generate energy۔ Repeated. They are available in infinite quantities in nature and are relatively short-term۔ Time period.

Non-renewable sources of energy

Non-renewable sources of energy are those that do not end and cannot be replaced once are used. These sources have been collected in a very long period of millions  Year.

Disadvantage of non-renewable energy sources 

(i) Due to their extensive use, these sources are rapidly disappearing۔ 

(ii) It is difficult to discover and benefit from new reserves of these sources۔ 

(iii) These sources are a major cause of environmental pollution۔

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