
The wavelength of a note emitted by a tuning fork of frequency 512 Hz in air at 17 C is 66.5cm. If the density of air at STP is 1.293g/L, what is the Cp/Cv for air? I am getting answer as 1.4 but the answer given is 1.48. Can ...

*Image* above is a rod having a perpendicular extension MN which has a container permanently fixed to it .. the container contains water full to its top.. the rod was rotated in such a way that water comes out of the hole of ...

a uniform rod of length 2L and mass M is kept vertically (along the Y axis) on a frictionless surface. its end point is at origin.. suddenly its end point starts sliding on the plane along the positive X axis..find the locus ...

A mixture of 90 mole % of H2and 10 mole % D2 at 298 K and a total pressure of 1 atm is allowed to effuse through a small orifice of area 0.3mm^2.Calculate composition of the initial gas that passes through. ...

66. Let f : (â€“1, 1) â†’ R be a differentiable function with f(0) = â€“1 and fâ€²(0) = 1. Let g(x) = [f(2f(x) + 2)]2. Then gâ€²(0) = (1) 4 (2) â€“4 (3) 0 (4) â€“2 ...

a cylinder of length L made of copper has resistivity kc having radius r . it is nickel plated till its radius becomes R . the resistivity of nickel plate is kn . find the conductance of nickled plate??? ...

a dipole is placed with its two ends having charges q and q 2L distance apart . An ant having charge +Q on his body moves fom infinity to a point r distance apart from dipole along dipole equatorial line . wt is the work don ...

capacitors with capacity 2 , 4 , 8 ..............âˆž (all in micro farads) are arranged in series combination... wt is the equvalent capacitance? ...

wt are the factors responsible for radioactivity seen in heavier nuclei , why not in lighter nuclei having most unstable nucleis???? ...

wt is the basic concept behind nuclear forces means their cause of origin??? ...

beta particles are emitted from nucleus but are negatively charged.how? ...

what are antineutrino particles??? ...

*Image* this is an series terminated by capacitor c. what value of c will make the contribution in equivalent capacity b/w a & b of series of capacors within the dots uneffective??? ...

two point charges q and 3q are at some seperation. if electric field at location of q is E ,THEN AT THE POSITION OF 3Q IT WILL BE?? ...

TWO IDENTICAL THIN RINGS OF RADIUS R ARE COAXIALLY PLACED A DISTANCE R APART . IF Q1 AND Q2 ARE RESP. THE CHARGES UNIFORMLY SPREAD ON TWO RINGS WORK DONE IN MOVING A CHARGE q FROM CENTRRE OF ONE RING TO THE OTHER??? ...

What documents/materials do we need fro Aieee counselling?please reply or give a link where i can get that. ...

1)There are 4 boys and 3 girls. What is the probability the boys and girls sit alternately? 2). Two trains are 2 kms apart. Speed of one train is 20m/s and the other train is running at 30 m/s .Lengths of the trains are 200 a ...

1. In old texts, 4 pi lines of force existed. pi isnt a natural no. exp. 2. can v knw if everthing in the universe became twice as big? 3. the moon rotates earth so that only one hemisphere faces earth.can v ever see the othe ...

It has been almost a week now and ccb is still not showing the indicative seats...a message"your choices have not been processed yet " is being displayed.....is everyone facing a similar problem..??? plzz reply.. ...

Q According to bohr's atomic theory for an electron in its nth orbit: mvr = nh/2Î suppose the velocity of an electron(m= 9.109*1031) revolving in an orbit of radius 'r' is found to be v=1.4504*106 ,then: (i)find no of signi ...

in NCERT physics (class XI) a formula is given for calculation of error in equivalent resistance of two resistances when they are connected in parallel for eg if two resistances are A and B such that: RA = R1 + Î”R1 RB = R2 + ...

Child labor is eating up the world from inside and we are not even noticing. We have been blessed to have had a good educationthanks to our parents.. But then again there are some children in this country who can not even wr ...

COPYING DOWN THE WHOLE QUESTION: plz do this question just like you have just entered 11th and don't know anything about acceleration of a particle in circular motion Q Suppose we are told that the acceleration 'a' of a part ...

someone pleaz answer these ques.... 1) A bal is thrown vertically up wards. It is observed at a height h twice with a time interval t. The initial velocity of the ball is....... 2)A circus artist maintains 4 balls in motion . ...

A car travelling at 60 Km/h overtake another car travelling at 42Km/h .Assuming each car to be 5.0m long,find the tame taken during the overtake and the total road distance used for the overtake ...

A rubber band with initial length L has one end tied to a wall. At t = 0, the other end is pulled away from the wall at speed V (assume that the rubber band stretches uniformly). At the same time, an ant located at the end no ...

a healthy young man standing at a distance of 7m from a 11.8 m high building sees a kid slipping from the top floor . with what speed (assumed uniform ) should he run to catch the kid at an arm height (1.8m) ...

if a person is walking in south direction with a speed of 20 m/s and in that time the direction of the wind ne direction and if the person increases the speed and walking with a speed of 40m/s then the direction of wind will ...

a ball is dropped from a height of 5m onto a sandy floof and penentrates the sand upto 10 cm before coming to rest . find the retardation of the ball in sand assuming it to be uniform. ...

1)The metre is defined as the distance by travelled light in 1/299,792,458 second. Why didn't people choose some easier number such as 1/300,000,000 second? Why not 1 second? 2)Suppose you are told that the linear size of eve ...