echemistry.in
General Properties of group–15 elements – E-Chemistry
http://echemistry.in/general-properties-of-group15-elements
General Properties of group–15 elements. Group 15 elements consists of following elements. The atoms of group 15 have 5 valence electrons in the outermost shell 2 in s and 3 in p subshell General electronic configuration of this group is ns. Atomic and Ionic Radii. On moving down the group electronegativity decreases because atomic size increases and shielding effect of inner electron shells also increases and it become difficult for a element to attract a electron rather it can easily loose a electron&#...
echemistry.in
Why Do Water Pipes Break In Winter! – E-Chemistry
http://echemistry.in/expansion-of-water-molecules-after-freezing
Why Do Water Pipes Break In Winter! Water molecule is made up of 2 hydrogen and one oxygen atom and it looks like a mickey mouse head with an oxygen molecule and 2 Hydrogen atom as mickey mouse ears. Characteristics of Chemical Reactions. A chemical reaction is a process in which new substances are formed with completely new properties. The substance which reacts in a. OZONE – PROS AND CONS. Why Do Old Books Become Yellow with Time. Variable Oxidation State Shown by Group 15 Element. Use of tea bags.
ephy.in
Science insider – E-Physics
http://ephy.in/category/science-insider
WHAT WOULD HAPPEN, IF THE SUN WERE MADE OF BANANAS! The sun is hot, it is because its enormous weight creates vast gravity putting its core under colossal pressure, just as a bicycle pump gets warm when you pump it, the pump increases the temperature. Enormous pressure leads to enormous temperature. If instead of hydrogen, you get a billion billion billion tons of bananas and […]. Posted in: Science insider. Sun made up of bananas. Magnetic effect of electric current. Ray optics and optical instruments.
ephy.in
Downloads – E-Physics
http://ephy.in/downloads
1 CBSE XII PHYSICS QP 2016 ANI. Leave a Reply Cancel reply. Your email address will not be published. Required fields are marked *. Magnetic effect of electric current. Ray optics and optical instruments. Correction of spherical aberration. Displacement method to determine the focal length of a convex lens. Images by spherical mirrors. Images formed by spherical mirrors. Number of Images formed by Reflection. Refraction by Prarallel sided slab. Refraction in a prism. Working principle of microscope.
ephy.in
Newton’s Equation – E-Physics
http://ephy.in/category/newtons-equation
Category: Newton’s Equation. Derivation of Newton’s Equation. Kinematic Equations for uniformly accelerated motion along straight line (i) Velocity time equation – (ii) Displacement time equation – (iii)Velocity displacement equation – (iv)Displacement in nth second – Consider a body of mass m having initial velocity u and after time t its final velocity becomes due to uniform acceleration. We know that Let the […]. Posted in: Newton's Equation. Tagged: Derivation of Newton's equation. Powered by Equalsi...
ephy.in
NEWTON’S FORMULA: – E-Physics
http://ephy.in/newtons-formula
If the distance of object and image are not measured from optical centre (C), but from first and second principal foci respectively, then newton’s formula states. Distance of object from first focus F. Distance of image from second focus. If medium on either side of lens is same, then. So, Newton’s formula takes the form,. Ray optics and optical instruments. Compound microscope: It is an optical device used to see highly magnified image of tiny objects. Construction: It consist of two convex. Apparent si...
ephy.in
Sources of Energy – E-Physics
http://ephy.in/category/sources-of-energy
Category: Sources of Energy. A Power plant in which the heat required to make steam to drive turbines (to make electricity) is obtained by burning fuels (coal, oil or gas) is called thermal Power plant. Coal (fuel oil or natural gas) is burned in a furnance F to produce heat. This heat boils the water in boiler B to […]. Posted in: Sources of Energy. Tagged: Thermal power plant. Magnetic effect of electric current. Ray optics and optical instruments. Apparent shift of a immiscible liquids.
ephy.in
Types of Force: Gravitational, Electric, Frictional, Viscous drag and Upthrust – E-Physics
http://ephy.in/types-of-force-gravitational-electric-frictional-viscous-drag-and-upthrust
Types of Force: Gravitational, Electric, Frictional, Viscous drag and Upthrust. Force may be described as a pull or a push that causes a body to accelerate or change the velocity of the body. Force is defined as rate of change of momentum. It is a vector quantity. S.I. unit Newton. All the force in universe are basis on for fundamental interactions. 3 Strong nuclear force. 4 Weak nuclear force. The force exerted by the two object due to mass in universe is gravitational force. 3 Strong Nuclear force:.
ephy.in
RESISTANCES (OR RESISTORS) IN PARALLEL – E-Physics
http://ephy.in/resistances-or-resistors-in-parallel
RESISTANCES (OR RESISTORS) IN PARALLEL. The reciprocal of the combined resistance of a number of resistance connected in parallel is equal to the sum of the reciprocal of all the individual resistances. For ex. If no. of resistances. Are connected in parallel then their combined resistance R is given by formula. When a number of resistances are connected in parallel then their combined resistance is less than the smallest individual resistance. And the current passing through the resistance R. Your email...
ephy.in
Ray optics and optical instruments – E-Physics
http://ephy.in/category/ray-optics-and-optical-instruments
Category: Ray optics and optical instruments. Compound microscope: It is an optical device used to see highly magnified image of tiny objects. Construction: It consist of two convex lenses of short focal length arranged co-axial at the free end of tube, at a suitable fixed distance. Objective: It is a convex lens of very short focal length and small aperture, kept […]. Posted in: Ray optics and optical instruments. GRAPHICAL METHOD FOR FORMATION OF IMAGE IN CASE OF CONCAVE LENS (DIVERGING LENS). Power of...
SOCIAL ENGAGEMENT