Collinear and Coplanar Vectors Collinear Vectors: They can have equal or unequal magnitudes and their directions may be same or opposite. Two vectors are collinear if they have the same direction or are parallel or anti-parallel. They can be expressed in the form a = k b where a and b are vectors and ‘ k ‘ is a scalar Read more about Collinear and Coplanar Vectors[…]
JEE Advanced 2018 Notification What is JEE Advanced? The Joint Entrance Examination (Advanced) 2018 will be conducted by the IITs . The performance of a candidate in this examination will form the basis for admission to the Bachelor’s, Integrated Master’s and Dual Degree programs (entry at the 10+2 level) in all the IITs. The decisions Read more about JEE Advanced 2018 Notification[…]
Simple Harmonic Motion In the preceding sections, the motion of a body when acted upon by a constant force was considered. The motion is one of constant acceleration. In this section, the motion of a body subjected to a variable force is considered. There is one common and important type of non-uniformly accelerated motion that Read more about Simple Harmonic Motion[…]
Condition for Parallel or Perpendicular Lines When the two lines are perpendicular, the angle between the lines is 90° which gives the condition of perpendicularity as l₁ l₂ + m₁ m₂ + n₁ n₂ = 0 or this implies a₁ a₂ + b₁ b₂ + c₁ c₂ = 0. Similarly, when the two lines are parallel, the angle between them i.e. θ = Read more about Condition for Parallel or Perpendicular Lines[…]
JEE Mains 2018 Notification Released INTRODUCTION AND SCHEME OF EXAMINATION: Admission criteria to Undergraduate Engineering Programs at NITs, IIITs, Other Centrally Funded Technical Institutions, Institutions funded by participating State Governments, and other Institutions shall include the performance in the class 12th/equivalent qualifying Examination and in the Joint Entrance Examination, JEE (Main). The Paper-1 (B. E/ Read more about JEE Mains 2018 Notification Released[…]
Kalinga Institute of Industrial Technology (KIITEE) 2018 Notification Released What is KIITEE? Kalinga Institute of Industrial Technology Entrance Examination (KIITEE) is the All India Entrance Examination conducted by KIIT University, Bhubaneswar for admission into various courses of KIIT University. Important Dates: Apply online from 20-11-2017 to 31-03-2018 Last date of hosting Admit Card 10-04-2018 in Read more about Kalinga Institute of Industrial Technology (KIITEE) 2018 Notification Released[…]
Direction Cosines: the cosines of the angles made by a directed line segment with the coordinate axes are called as the direction cosines of that line.if α, β, and γ are the angles made by the line segment with the coordinate axis then these angles are termed to be the direction angles and the cosines of these angles Read more about Relation between the Direction Cosines[…]
According to the first law of motion given by Newton says that a body is in its current motion state till any external force is acted upon it. The moment of inertia of the linear motion is measured by the mass of the system and angular counterpart. The inertia is related to mass and the amount of mass distribution Read more about Moment of inertia[…]
What is COMEDK? Based on the mandate given by the KUPECA, COMEDK’s Under Graduate Entrance Examination for Engineering Courses (UGET – 2018) in COMEDK member institutions. The test will be conducted on All India basis across the Country to facilitate the students to appear in the test closer to their homes and is aimed at Read more about COMEDK 2018 Exam Date Released[…]
Let θ be the angle between two straight lines AB and AC whose direction cosines are given by l₁, m₁, n₁ and l₂, m₂, n₂ respectively. Then the angle between the lines AB and AC is given by cos θ = l₁ l₂ + m₁ m₂ + n₁ n₂.If the direction ratios of the two lines are a₁, b₁, Read more about Angle between Two Lines[…]