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Syllabus

WHAT IS DIMENSIONAL FORMULA OF PERMITTIVITY OF VACUUM

What is the full form of CGS,FPS & MKS?

what is the fullform of SONAR and Radar?

1.Check the correctness of the equation P=hdg

2.

In the determination of g by a simple pendulum, 100 oscillations are taken and total time measured is 200s. the count of the stop watch is 0.1s. The length of the pendulum measured with a metric scale of least count 1mm is 1m. Find the percentage error in the value of g.

What is the dimensional formula for capacitance?

what is Weber and Weber/m

^{2}is equal to?what is dimensional formula of young modulus

Answer given in the book is 3.33m but I think it should be 3.3 as the radius would be 0.53m, so the result should contain 2 significant figures as the number of significant digures is least in radius.

How to measure the least count of the instrument???

Check the dimensional consistency of the following equations.

(i) de brogile's wavelength ,λ=h/mv

(ii)Escape velocity,v=√2GM/R

find the dimensional formula of resistance R

Check correctness of relation by dimensional analysis lambda =h/mv where letter have heir own usual meaning?

Find angle of projection at which he horizontal range and maximum height of a projectile are equal?

What is the dimensional formula of Spring Constant (K)?

The velocity v of a particle depends upon time t, according to the equation v = a + bt +c/(d+t)

write the dimensions of a, b, c, d .

difference between fundamental unit and derived unit

write the physical quantity which has no unit and no dimension

the value of G in c.g.s. system is 6.67*10

^{-8}dyne cm^{2}/g^{2}.what is its value in s.i.what is the difference between gravitational force and electromagnetic force?

universal gas constant dimensional formulae

Two resistors of resistances R

_{1}=100±3 ohm and R_{2}=200±4 ohm are connected(a) In series, (b) in parallel. Find the equivalent resistance of the (a) series combination, (b) parallel combination. Use for (a) the relation R=R

_{1}+R_{2 }and for (b) 1/R=1/R_{1}+1/R_{2}and ΔR_{1}/R_{1}^{2}+ΔR_{2}/R_{2}^{2}?find the dimensitions of coefficient of viscocity and its SI unit .

What is Personal Error, Instrumental Error and Random Error? Explain with giving an example?

PLEASE TELL ME............

DEtermine the dimensionl formula for potential difference

check the correctness of the relation:

v=root under E/P ,

where v is speed of the sound in a medium of elasticity E and density P.

using dimensional analysis derive the relation :-

s=ut + 1/2 at

^{2}pls merit experts pls help..fast

A gas bubble from an explosion under water, oscillates with atime period Tproportional to p

^{a}d^{b}E^{c}, where p,d, and E arepressure, density and total energy respectively. Find the value ofa, b and c.Check the correctness of

S=ut + 1/2 at^{2}what is a fractional error?

what is the dimensional formula of amplitude?

The sun's angular diameter is measured to be 1920''. The distance D of the sun from the earth is 1.496 *10power -11m. What is the diameter of the sun ? will you pzzz explain me the answer .

A dimensionless quantity --

a)Never has a unit

b)Always has a unit

c)May have a unit

d)does not exist

S

_{nth}_{}=u + ( a / 2 )(2n-1) Check whether this equation is dimensionally correct or not.check the accuracy:- F.S=1/2mv^2-1/2mu^2 where F=force & S= distance

If momentum of an object is increased by 10%,then its kinetic energy will b increased by--?

What is the dimensional formula of capacity?

derivation of three laws of motion

convert a pressure of one atmospheric(=10

^{5 }N m^{2})into dyne cm^{-2}..could anyone please explain with detailed steps?write the advantages and disadvantages of dimensional analysis?

if the error in measurement of radius of a sphere is 2% , then the error in the determination of volume of the sphere will be4%6%8%2%answer me with suitable explainationCheck the correctness of the relation

h = r p g / 2 s cos(theta) , where h = height, r = radius, p = density, s = surface tension, and g = acceleration due to gravity.

classify variables and constants on the basis of dimensions? Give examples of each type?

The percentage error in the measurement of mass and speed are 2% and 3% respectively. How much will be the maximum error in the estimate of kinetic energy obtained by measuring mass and speed?

the centripetal force is given by F = m v

^{2}/ r, the mass(m), velocity (v) and radius(r) of the circular path of an object are 0.5 kg, 10m s^{-1}and 0.4 m respectively if m, v and r are measured to accuracies of 0.005 kg, 0.01 m s^{-1}and 0.01 m respectively, find percentage error in force acting on the body.The van der waals equation for a gas is (P + a/v

^{2})(V-b) = RT where P = Pressure, V = Volume, T = Temperature. Find the dimensions and SI units of a,b, and the Gas Constant R.^{}the velocity 'v' of water waves may depend on their wavelength, density of water and acceleration due to gravity. Find relation between these quantities by the method of dimension

A man walks on a straight road from his home to the market 2.5 km away with a speed of 5km/hr .Finding the market closed ,he instantly turns and walks back home with a speed of 7.5 km/hr .What is the magnitude of average velocity and average speed of man over the interval of time :

^{2}b^{3}/c^{4},find the percentage error in Z.correctness of dimensitional formula v=u+at

The velocity (v) of transverse waves on a string may depend upon (1) length (l) of string, (2) tension T in the string and (3) mass per unit length (m) of the string. Derive the formula dimensionally.

The unit of 1/l √T/m is the same as that of (where T = tension force, m = mass per unit length l) a Frequency b. Time period c. Wave lenght d. Wave no.

the displacement time graph for the two particles A and B are straight lines inclined at angles of 30 and 45 degrees with the time axis.what is the ratio of the velocities VA : VB ?

PLZ ANS AS SOON AS POSSIBLE ...........TOMMOROW IS MY EXAM

Describe a method for measuring the molecular size of oleic acid

The velocity of sound waves 'v' through a medium may be assumed to depend on:

1. the density of the medium 'd' 2. the modulus of elasticity 's'

Deduce by the method of dimension for formula for the velocity of sound.(take dimensional constant k=1)

What is the dimensional formula of E=mc

^{2}?pls derive the formula of radius of curvature i.e. R = l2/6h+h/2

^{-2}. find the value of ms^{-2}(S I system).check the dimensional accuracy of the relation T=2pie root l/g?

Two resistors of resistances R

_{1}= 100+/-3 ohm and R_{2}= 200+/-4 ohm are connected (a) in series, (b) in parallel. Find the equivalent resistance of the (a) series combination, (b) parallel combination. Use for (a) the realtion R = R_{1}+ R_{2}and for (b) 1/R ' = 1/R_{1}+ 1/R_{2}andΔR '/R '^{2}=ΔR_{1}/R_{1}^{2}+ΔR_{2}/R_{2}^{2}.Human Heart is an in built clok, comment.

Can a quantity have dimensions but still no units?

By method of dimensional analysis, derive the relation:

S=ut+1/2at

^{2}, where the letters have their usual meaningsFind the dimension of a/b in the equation p=a-t

^{2}/bx where p is pressure,x is distance and t is time.A physical quantity P is related to four observables a,b,c and d as follows ; P = a

^{2}b^{3}/ c^{4}√d. The percentage errors in a,b,c and d are 2%, 4% ,3% and2% respectively. What is the percentage error in the quantity P .

what is the dimensional formula for heat?

^{n}B^{m}.If x=a+bt+ct

^{2 where x is in metres and t is in seconds.What is the unit of c?}if the errors involved in the measurements of a side and mass of a cube are 3% and 4% respectively ,what is the maximum permissible error in the density of the material?

What is the dimensional formula of light year?

in a successive measurement of the period of oscillation of a simple pendulum , the readings turn out to be 2.63s ,2.56s , 2.42s , 2.71s , 2.80s . calculate absolute error , relative error percentage error ?

Can a quantity have units but still dimensionless? Can a quantity have dimensions but still unitless?

block is measured using Vernier callipers. The

percentage errors in the measurements are

2%, 1% and 3% respectively. Estimate the

percentage error in its volume.

the period of oscillation of a simple pendulum is T=2pi√4g. measured value of l is 20.0 cm known to 1mm accuracy and time for 100 oscillations of the pendulum is found to be 90s using a wrist watch of 1s resolution. What is the determination of g.