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Light: reflection and refraction - Light is a form of energy which enables us to see things around us. This chapter covers topics like light, laws of reflection and refraction, mirrors, etc.
The natural optical instrument used by human beings to see the object around them is known as the human eye. It is like a natural camera for human beings which has a lens in it. This chapter covers the topics like defects in the human eye, the structure of the human eye, the formation of image in the human eye, and ray diagrams of prisms.
This chapter teaches you about the polynomials of varying degrees such as linear, quadratic and cubic polynomials and the geometrical meaning of polynomials. You will also get to understand the relationship between the coefficients and zeros of a polynomial and the division algorithm.
Ever wondered why we immediately pull back our hands when we touch something hot or why the leaves of the ‘touch-me-not plant’ fold up and drop when we touch them? You will find the answers to these questions in this chapter.
This chapter introduces you to different fundamentals of physics and physical forces like inertia, velocity, the law of conservation of momentum and magnitude of the force.
This chapter focuses on the basic and fundamental understanding of gravitation and the various terms and applications related to it.
Sound elaborates the concept of sound along with the terms related to it. It deals with concepts like amplitude, frequency, vibrations, mechanics behind SONAR and the velocity of sound.
You will be introduced to new concepts such as distance formula and section formula besides the revision of abscissa and ordinate of point and an interesting method to calculate the area of a triangle using coordinate geometry.
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