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properties of lightthe wavefronts can be of different shapes depending on the size and shape of light source and the distance from it huygens
theory of lightnewton proposed corpuscular theory of light2 according to corpuscular theory light consists of a stream of tiny light and
reactions of alkaline earth metals with oxygenwrite the reactions of any two elements of group ii a with oxygenans alkaline earth metals react with
ionization energy of groupwhy does ionization energy of group iia elements decrease from be to ra a as the atomic size increases from be to ra the
please read instruction carefully do not accept job if you are not able to do it i only accept high quality
the parachute on a race car that weighs 8750 n opens at the end of a quarter-mile run when the car is traveling 38 ms what net retarding force
what is magnetic moment of a bar magnet1 when a bar magnet of pole strength m and length 2l is suspended freely in airit always turns along the
measurement of lengthif the zeroth division of the head scale does not coincide with the index line the screw gauge has zero errorif the zeroth
distinguish between absolute permeability and relative permeability of a mediumabsolute permeability1 absolute permeability is the ability of the
isolated magnetic poles do not exist explaina 1 if a bar magnet is cut into smaller and smaller pieces eventually ending with the smallest
state inverse square law of magnetism a coulombs inverse law of magnetism states that the force of attraction or repulsion between two
magnetic susceptibility and ferromagnetic substancesmagnetic susceptibility the magnetic susceptibility c of a substance is defined as the
equatorial line and neutral pointequatorial line the imaginary line joining the centre of mass and perpendicular to the line joining the poles
a 65 ohm resistor is connected to a power supply a current of 24 amperes is drawn what is the output
two students walk in the same direction along a straight path at a constant speed one at 90ms and another at 190ms assuming that they start at the
an object moves from postion 16m to the postion 47m in 12swhat is its total displacement and its average
a ball is thrown upward from the top of a building 60m hign with an initial velocity of 490 ms when is the ball 784 meters above its starting
alkaline earth metalsthe elements be mg ca sr ba and ra belong to ii a group2 ii a group elements are also called alkaline earth metals3 the valence
magnetism - basic concepts1 pole strength the ability of a pole of a magnet to attract or repel another magnetic pole is called its
reference solution a proper reference solution contains color reagent plus sample buffer the difference between the reference and a sample is that
basic principles of spectrophotometryan absorbance spectrophotometer is an instrument that measures the fraction of the incident light transmitted
pleural pericardial and ascitic fluid collection the procedure is called paracentesis if for pleural cavity is called thoracocentesis and
synovial fluid collectionthe technique of obtaining synovial fluid is called arthrocentesis it is used to characterize type of arthritis and to
urine collectionuntimed or random urine specimens are suitable only for few chemical tests mainly qualitative test usually urine sample is collected
skin puncture skin puncture is usually done when small volume of blood is needed eg blood glucose test to avoid unnecessary venipuncturehowever skin