Ch-11: Organic Compounds

Ch-11: Organic Compounds

Class-10th - Chemistry Definitions

Organic Compounds:

• Organic compounds are composed primarily of carbon atoms and usually contain hydrogen atoms as well.
• They have a wide range of chemical diversity and magnitude, with millions of known organic compounds.
• Organic compounds tend to have covalent bonds

Ch-10 Acid, Bases and Salts

Ch-10: Acid, Bases and Salts

Class 10th - Chemistry Definitions

Concepts of Acids and Bases:

• Acids and bases are fundamental concepts in chemistry that describe substances with specific properties and behaviors. 
• Acids are characterized by their ability

Ch-09 - Chemical Equilibrium

Ch-09 - Chemical Equilibrium

Class 10th - Chemistry Definitions

Chemical Equilibrium: Chemical equilibrium is the state in a reversible reaction where the rate of the forward reaction is equal to the rate of the reverse reaction. This means that the concentrations of reactants and products remain constant over time.

Chapter-12: Geometrical Optics

Chapter-12:  Geometrical Optics

Light is the main focus of this unit which describe different phenomena of light such as reflection, refraction and total internal reflection. This unit explains how images are formed by mirrors and lenses and will discuss working principle of compound microscope and telescope as: 

• describe the terms used in reflection including normal, angle of incidence, angle of reflection and state laws of reflection. 
• solve problems of image location by spherical mirrors by using mirror formula. 
• describe the passage of light through parallel-sided transparent material. 
• define power of a lens and its unit. 
• describe the correction of short-sight and long-sight. 

Chapter-18: Atomic Number and Nuclear Physics

Atomic and Nuclear Physics

The word atom is derived from the Greek word "otomos", meaning "indivisible". At one time, atoms were thought to be teh smallest particles of matter. Today we know that atoms are composite systems and contain even smaller particles: protons, neutrons and electrons. This unit: 

• describe the structure of an atom in terms of a nucleus and electrons. 
• describe the composition of the nucleus in terms of protons and neutrons. 
• explain the number of protons in a nucleus distinguishes one element from the other. 
• describe teh process of carbon dating to estimate the age of ancient objects. 
• describe hazards of radioactive materials. 

Chapter-17: Information and Communication Technology

We are living in the age of information and communication technology. Now-a-days telephone, mobile phone, fax machine, computer and internet are the main sources of contact. These sources have shortened the distances and have brought in contact the whole world. We should know what this Information and Telecommunication Technology is: 

• components of information technology
• the transmission of: 
• electric signals through wires 
• radio waves through air
• light signals through optical fibres
• describe function and use of fax machines, cell phones, photo phone and computer. 
• make a list of the use of E-mail and internet. 

Chapter-16: Basic Electronics

Electronics is that branch of applied physics which deals with the control of motion of electrons using different devices. Electronic devices being more effective and reliable have revolutionized the fields of telecommunication and information technology. This chapter providing: 

• explain the process of thermionic emission emitted from a filament. 
• describe the simple construction and use of an electron gun as a source of electronic beam. 
• describe the effect of electric field on an electron beam. 
• describe the effect of magnetic field on an electron beam. 
• describe the basic principle of CRO and make a list of its uses. 

Chapter-15: Electromagnetism

 

Here this post contains Short Question and Answers of Chapter 15 - Physics for 10th Class "Electromagnetism". Learn these question answers and other related stuff for exam preparation.

In Chapter-15 Electromagnetism is the study of magnetic effects of current. The uses of electromagnetism in different fields of science and technology is very wide. 

• Motors and electric meters are based on the effect of magnetism produced by the electric current in wires. 
• Generators produce electric current due to the movement of wires near very large magnets. 

Chapter-14: Current Electricity

 

Here this post contains Short Question and Answers of Chapter 14 - Physics for 10th Class "Current Electricity". Learn these question answers and other related stuff for exam preparation.

In Chapter-14 Current Electricity can be defined as the flow of electrons from one section of the circuit to another. Current Electricity is one of the main discovery through which we are highly dependent on to make our life easier. Benjamin Franklin is credited with the discovery of electricity.

Ch-13: Electrostatics

 

Here this post contains Short Question and Answers of Chapter 13 - Physics "Electrostatics". Learn these question answers and other related stuff for exam preparation.

In Chapter-13 Electrostatics can be defined as a branch of physics that deals with the phenomena and properties of stationary or slow-moving electric charges. Charges reach their equilibrium positions rapidly, because the electric force is extremely strong.

Ch-12: Geometrical Optics

Chapter-12: Geometrical Optics 

Here this post contains Short Question and Answers of Chapter 12: "Geometrical Optics". Learn these question answers and other related stuff for exam preparation. 

Geometrical optics is a branch of optics where light is described by rays. Light rays are conceived as geometrical lines originating from sources, extending through media, and being revealed by detectors; their directions account for paths along which light flows.

Ch-11: Sound

Ch-11: Sound 

Here this post contains Short Question and Answers of Chapter 11: "Sound". Learn these question answers and other related stuff for exam preparation. 

A sound is a type of energy, very much like power, intensity or light. Sound is one of the significant feelings of the human body. A few sounds are wonderful, and some are irritating. We are exposed to different kinds of sound all time. Sound is a vibration that spreads as an acoustic wave, through a transmission medium

Ch-10: Simple Harmonic Motion and Waves

Ch-10: Simple Harmonic Motion and Waves

Here this post contains Short Question and Answers of Chapter 10 - Physics "Simple Harmonic Motion and Waves". Learn these question answers and other related stuff for exam preparation.

Simple Harmonic Motion or SHM can be defined as a motion in which the restoring force is directly proportional to the displacement of the body from its mean position. Understand SHM along with its types, equations and more.