Mirror Formula and Magnification Mirror formula gives the relationship between image distance, object distance and the focal length of the mirror and this formula is valid in all situations for all spherical mirrors for all positions of the object. Magnification produced by a spherical mirror gives the relative extent to which the image of an Read more about Mirror Formula and Magnification[…]
Comparison of Stopping Distance and Time for Two Vehicles When the body is moving with a certain velocity and suddenly brakes are applied, then the body stops completely after covering a certain distance, this is called as Stopping Distance. It is the distance travelled between the time when the body decides to stop a moving Read more about Comparison of Stopping Distance and Time for Two Vehicles[…]
Sine of the Difference and Sum of Two Angles 1. sin (A-B) = sinA cosB + cosA sinB Proof: L.H.S: sin (A-B) = sinA cosB + cosA sinB L.H.S sin (A – B) = cos (90 – (A – B)) (since cos (90 – θ) = sin θ) = cos (90 – (A – B)) Read more about Sine of the Difference and Sum of Two Angles[…]
Kalinga Institute of Industrial Technology Entrance Exam (KIITEE) 2020 Notification Released Kalinga Institute of Industrial Technology (KIIT) is unique among its peer institutions in having nineteen schools co-located on one contiguous campus, and all of them possess exceptional breadth and depth of excellence. This naturally facilitates multidisciplinary collaboration. Courses Offered: B.Tech. (4 years) Civil Engineering Read more about Kalinga Institute of Industrial Technology Entrance Exam (KIITEE) 2020 Notification Released[…]
Conditional Identities (Tanθ) – Problems 1. If A + B + C = nπ, n Є Z that TanA + TanB + TanC = TanA TanB TanC. Proof: We have , A + B + C = nπ Tan (A + B + C) = tan(nπ) = tan(π) = 0 , TanA + TanB + Read more about Conditional Identities (Tanθ) – Problems[…]
Equation of a Plane Progressive Wave 1) If during propagation of a progressive wave, the particles of the medium perform Simple Harmonic Motion about their mean position, then the waves is known as a Harmonic progressive wave. 2) Suppose a plane simple harmonic wave travels from the origin along the positive direction of x – Read more about Equation of a Plane Progressive Wave[…]
Conditional Identities Some standard Identities in Triangle: 1. sin2A + sin2B + sin2C = 4 sinA sinB sinC Proof: L.H.S sin2A + sin2B + sin2C (since sinC + sinD = 2sin (C + D)/2 cos (C – D)/2), , , , , , , , , , , , Hence proved 2. cosA + cosB Read more about Conditional Identities[…]
Water Equivalent Water equivalent of a body is defined as the mass of water which would absorb or evolve the same amount of heat as is done by the body in rising or falling through the same range of temperature. It is represented by W. It is the quantity of water whose thermal capacity is Read more about Water Equivalent[…]
Uttaranchal University 2020 Application Started Uttaranchal University is constituted with the merger of professional institutes of Sushila Devi Centre for Professional Studies & Research Society, namely Law College Dehradun, Uttaranchal Institute of Technology and Uttaranchal Institute of Management. Uttaranchal University is one of the leading educational hubs of professional courses with innumerable students enrolled in Read more about Uttaranchal University 2020 Application Started[…]
Manav Rachna University (MRNAT) 2020 Application Started Manav Rachna University (MRU) is a State Private University (established by Haryana State Legislature Act No 26 of 2014 & under section 2(f) of UGC Act 1956), evolved from Manav Rachna College of Engineering (MRCE, established in 2004), is a NAAC Accredited ‘A’ Grade Institution rated AAA for Read more about Manav Rachna University (MRNAT) 2020 Application Started[…]