1- the quantity which has the same dimension as that of gravitational potential ? 2- the distance x covered by a particle varies with time t as x2=2t2+6t+1. its acceleration will vary with x as ? 3- in a uniform circular motion the angle between the velocity and acceleration will be ? 4- the principle involved in the performance of a spinning-chair circus acrobat is ? 5- if the earth is 1/4 of its present distance from sun,the duration of the year will be changed to ? 6- in a cyclic process , the amount of heat given to a systam will be equal to ? 7- the pressure variation in the propagation of sound wave will be ? 8- when a comb rubbed with dry hair attracts pieces of paper this is because ? 9- the smallest resistance that can be obtained by combining 10 resistors each of resistance 10 ohm will be ? 10- the angle of dip at a place where horizontal and vertical components of earth magnetic field are equal will be ? 11- an ac source of voltage E=20 sin 100 t is connected across a resistance 20 ohm. the ms value of current in the circuit will be ? 12- a given resistor has the following colour code of various strips on it brown,black green and silver. the value of its resistance in ohm will be ? 13- the angle of incidence for an equilateral prism of refractive index v3 so that the ray is parallel to the base inside the prism is ? 14- a radioactive material of half-life time of 69.3 days kept in a container 2/3rd of the substance remains undecayed after (given ln 3/2 = 0.4) ? 15- the radiating power of a linear antenna of length l for a wave of wavelength ? is proportional to ? 16- in solvay process of manufacture of sodium carbonate, the byproduct is? 17- in neutral or faintly alkaline medium , thiosulphate is quantitatively oxidised by KMno4 to? 18- the sum of pH and pKb for a basic buffer solution is 13. the ratio of the concentration of the base to that of the salt is? 19- salicylaldehyde can be prepared from phenol by ? 20- one mole of alkene on ozonolysis gives 2 mole of butanone. the alkene is? 21- the compound that neither forms semicarbazone nor oxime is ? 22- how many amino acids are present in insulin ? 23- how many times oxyhaemoglobin is less stable than carboxyhaemoglobin ? 24- isopropylbenzene is oxidised in the presence of air to compound A . when compound A is treated with dilute mineral acid , the aromatic product formed will be ? 25- the total number of acyclic structural isomers possible for compound ith molecular formula C4div0O is ?

ujjwal shahi , 12 Years ago

Grade Upto college level