Siksha ‘O’ Anusandhan Admission Test (SAAT) 2019 Notification Released Updated

Posted on 26/12/201806/01/2019 by myrank

Siksha ‘O’ Anusandhan Admission Test (SAAT) 2019 Notification Released Updated Siksha ‘O’ Anusandhan Admission Test (SAAT), a national level entrance test is conducted by Siksha ‘O’ Anusandhan Deemed to be University every year to select bright students from different parts of our country. The test is being conducted for different programs offered in constituent institutes/ schools Read more about Siksha ‘O’ Anusandhan Admission Test (SAAT) 2019 Notification Released Updated[…]

West Bengal Joint Entrance Exam (WBJEE) 2019 Notification Released Updated

Posted on 26/12/201826/12/2018 by myrank

West Bengal Joint Entrance Exam (WBJEE) 2019 Notification Released Updated The West Bengal Joint Entrance Examinations Board (WBJEEB) was constituted in the year 1962 by the Government of West Bengal, in exercise of the powers conferred under article 162 of the Constitution of India pursuant to No. 828-Edn(T), dated 02.03.1962 for the purpose of conducting Joint Read more about West Bengal Joint Entrance Exam (WBJEE) 2019 Notification Released Updated[…]

Asymptotes of Hyperbola

Posted on 24/12/201824/12/2018 by myrank

Asymptotes of Hyperbola If the length of the perpendicular from a point on a hyperbola to a straight line tends to zero as the point on the hyperbola moves to infinity along the hyperbola, then the straight line is called the asymptote of the hyperbola. The asymptote of a hyperbola can be found as follows. Read more about Asymptotes of Hyperbola[…]

Principles of Calorimetry

Posted on 24/12/201824/12/2018 by myrank

Principles of Calorimetry Calorimetry is a scientific experimental measurement of the change of heat of a substance. A calorimeter is usually the container in which the heat change experiment is conducted. Calorimetry means “measuring heat”. When two bodies (one being solid and other being liquid or both being liquid) at different temperatures are mixed, heat Read more about Principles of Calorimetry[…]

Intersection of a Line and an Ellipse

Posted on 21/12/201806/01/2019 by myrank

Intersection of a Line and an Ellipse Line: y = mx + c … (1) Ellipse: … (2) Solving equations (1) and (2), we get b²x² + a²(mx + c ) ² = a²b² i.e., (a²m² + b²) x² + 2a² cmx + a²(c² – b²) = 0. Hence, are the tangents to the ellipse Read more about Intersection of a Line and an Ellipse[…]

Volume or Cubical Expansion

Posted on 20/12/201820/12/2018 by myrank

Volume or Cubical Expansion When a solid is heated and its volume increases, then the expansion is called volume expansion (or) cubical expansion. Consider a rectangular parallel piped of slides l₁, l₂ and l₃. Its initial volume (V₀) = l₁ x l₂ x l₃. Differentiating both sides with respect to T, we get: . dV/ Read more about Volume or Cubical Expansion[…]

Equation of Parabola

Posted on 19/12/201806/01/2019 by myrank

Equation of Parabola Equation of Parabola when vertex is (h, k) and Axis is Parallel to Y-axis. The equation of the parabola with vertex (h, k) is (x – h)² = 4a (y – k) Its focus is at (h, a + k) and the length of the latus rectum is 4a. The equation of Read more about Equation of Parabola[…]

Superficial Expansion

Posted on 19/12/201819/12/2018 by myrank

Superficial Expansion When the temperature of a two – dimensional object is changed, its area changes, then the expansion is called superficial expansion. A two – dimensional object, such as a thin metallic plate, changes area when its temperature is raised or lowered. For an isotope material the area expansion may be expressed in terms Read more about Superficial Expansion[…]

Thermal Expansion in Liquids

Posted on 17/12/201817/12/2018 by myrank

Thermal Expansion in Liquids Liquids do not have linear and superficial expansion but these only have volume expansion. Since liquids are always to be heated along with the vessel that contains them so initially on heating the system, the level of liquid in vessel falls but later on, it starts rising due to faster expansion Read more about Thermal Expansion in Liquids[…]

Equation of an Ellipse Referred to Two Perpendicular Lines

Posted on 16/12/201816/12/2018 by myrank

Equation of an Ellipse Referred to Two Perpendicular Lines Consider the ellipse . Let P (x, y) be any point on the ellipse. Then PM = y and PN = x. . If follows from this if the perpendicular distance P₁ and P₂ of a moving point P (x, y) from two mutually perpendicular coplanar Read more about Equation of an Ellipse Referred to Two Perpendicular Lines[…]