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Pressure-temperature phase diagram
For a proper discussion of the three phases of matter, we require a three-dimensional diagram in which P, V and T should be plotted against three mutually perpendicular coordinate axes. This diagram, known as P-V-T diagram, is difficult to draw on paper. Hence, we gene..
For a proper discussion of the three phases of matter, we require a three-dimensional diagram in which P, V and T should be plotted against three mutually perpendicular coordinate axes. This diagram, known as P-V-T diagram, is difficult to draw on paper. Hence, we gene..Recomposition of White Light
In order to get white light from the dispersed light the prisms are arranged as shown in the diagram. Recombination of the seven colours of the dispersed white light to get white light is known as recomposition of white lig..
Spherical Mirrors
Spherical Mirrors - A mirror whose polished, reflecting surface is a part of a hollow sphere of glass or plastic is called a spherical mirror. In a spherical mirror, one of the two curved surfaces is coated with a thin layer of silver followed by a coating of red lead oxide paint. Thus, one side of..
Example:
In a class of 80 boys, there are 60 boys who play rugby and 35 play tennis. Use Venn diagrams to show how many boys play both the games? How many play rugby only and how many play tennis onl..
Alternate angles
A pair of angles are said to be alternate angles if (i) both are interior angles (ii) they are on the opposite sides of the transversal and (iii) they are not adjacent angles. Alternate angles are some times also called alternate interior angles. In the diagram..
A pair of angles are said to be alternate angles if (i) both are interior angles (ii) they are on the opposite sides of the transversal and (iii) they are not adjacent angles. Alternate angles are some times also called alternate interior angles. In the diagram..Introduction
Recall that if two straight lines are not parallel, they meet at a point when produced. Observe lines l and m which meet at a point (O). In the diagram, l and m are called intersecting lines. O is called the point of intersection. Similarly two line segments or two rays may intersect..
Recall that if two straight lines are not parallel, they meet at a point when produced. Observe lines l and m which meet at a point (O). In the diagram, l and m are called intersecting lines. O is called the point of intersection. Similarly two line segments or two rays may intersect..Simple or Unconditioned or Natural Reflex
The moving away of hand in response to pin-prick or heat is an example of this type. In the above diagrams, it can be seen that the pathway of conduction is in the form of an arc. Thus, these pathways are also called the reflex arcs . Impulses can flow only in a single dire..
Types of Simple Reflex
Simple reflex is also of two types. They are as follows: In the first type, only the sensory and motor neurons of the spinal nerves are involved. Reflex arc - a Minimum Nerve Circuit between Stimulus and Response Jerking of knee when tapped below the kneecap is an example. In the second t..
Simple reflex is also of two types. They are as follows: In the first type, only the sensory and motor neurons of the spinal nerves are involved. Reflex arc - a Minimum Nerve Circuit between Stimulus and Response Jerking of knee when tapped below the kneecap is an example. In the second t..Parallelograms
In the diagram, OD=OB and OA=OC Each diagonal divides the parallelogram into two congruent triangles. The properties of a parallelogram understood through measurement can also be proved through logical steps. But, before that let us recall some names associated with pairs of sides an..
In the diagram, OD=OB and OA=OC Each diagonal divides the parallelogram into two congruent triangles. The properties of a parallelogram understood through measurement can also be proved through logical steps. But, before that let us recall some names associated with pairs of sides an..Spherical Mirrors for Reflection
Spherical Mirrors - A mirror whose polished, reflecting surface is a part of a hollow sphere of glass or plastic is called a spherical mirror. In a spherical mirror, one of the two curved surfaces is coated with a thin layer of silver followed by a coating of red lead oxide paint. Thus, one si..
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