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Syllabus

WHAT IS DIMENSIONAL FORMULA OF PERMITTIVITY OF VACUUM

h=Fv^2 /L x F

. F is the force, v is the velocity

and L is the angular momentum. Find the

dimensions of h .

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

what is Weber and Weber/m

^{2}is equal to?what is the fullform of SONAR and Radar?

1.A composite wire of diameter 1cm consisting of copper and steel wire of length 2.2m and 2 m

respectively.total extension of wire when stretched by a force is 1.2mm.calculate the force .(

Y of steel is 2*10

^{11 pa}Y of copper is 1.1*10

^{11 pa}What is the dimensional formula for capacitance?

what is dimensional formula of young modulus

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

A point P is taken to be origin of time and position . Two points Q and R are situated on a straight line passing through P . The positions of Q and R are 8m and 12m respectively while the instant at which the body reach these points are 3s and 5s . WHAT IS THE SPEED OF THE BODY?????find the dimensional formula of resistance R

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

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

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

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

A dimensionless quantity --

a)Never has a unit

b)Always has a unit

c)May have a unit

d)does not exist

difference between fundamental unit and derived unit

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 form of dependence of the lift force per unit wingspan F (wingspan is the total length of the wings ) on an aircraft wing of width L, moving with a velocity v through air density ρ ?

universal gas constant dimensional formulae

nRT)?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}?$1)\frac{K\u2206T}{{T}_{o}}2)\frac{2K\u2206T}{{T}_{o}}3)\frac{4K\u2206T}{{T}_{o}}4)\frac{K\u2206T}{4{T}_{o}}$

find the dimensitions of coefficient of viscocity and its SI unit .

and modulus of elasticity (E). (the

dimensional formula of E is ML-1T-2).

a) State the principle of homogeneity

b) Using the above principle, arrive at an

expression for the velocity of sound. (Take

K=1).

DEtermine the dimensionl formula for potential difference

Length of a sheet is17.3+_ 0.3 cm and breadth is 3.12+_ 0.08 . cm Calculate the percentage error in the area.

using dimensional analysis derive the relation :-

s=ut + 1/2 at

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

Does the magnitude of a physical quantity depend on system of units chosen ?

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}radius of a circle is 0.6%. Find the

percentage error in the calculation of the area

of the circle.

what is a fractional error?

A) 0.8% B) 8% C) 4% D) 0.4% E) 10%

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 .

what is the smallest and biggest unit of mass,time,length. plz answer fast.

.

S

_{nth}_{}=u + ( a / 2 )(2n-1) Check whether this equation is dimensionally correct or not.If momentum of an object is increased by 10%,then its kinetic energy will b increased by--?

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.derivation of three laws of motion

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 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 .

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

what is the definition for the term "Most probable value"?

write the advantages and disadvantages of dimensional analysis?

relative error in two measurements are [Assume only systamatic errors are involved]

(A) Absolute error same for both, relative error greater for MA and lesser for MB.

(B) Absolute error same for both, relative error greater for MB and lesser for MA.

(C) Relative error same for both, absolute error greater for MA and lesser for MB.

(D) Relative error same for both, absolute error greater for MB and lesser for MA. do give proper steps and reason for this as i couldn't understand

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.

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?

There is an equation in physics, here it is!!! : U = VIt.

Can anybody please tell me what does U refer to????? Please give my answer!!!!. I will surely give thumbs up!!!!.

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.^{}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 :

^{3}, f has the dimension of?correctness of dimensitional formula v=u+at

Q 3) During an experiment using Searle's method, a 4 m long wire gets extended by 6 mm with 0.02 mm uncertainty when a load of 2 kg is suspended at its lower end. What will be the value of Young's modulus obtained from this given data?

(Take the measured diameter of the wire to be 2.4 mm with 0.01 mm uncertainty and g = 9.8 m/s

^{2}).A) 2.89 ± 0.04 GPa

B) 2.89 ± 0.03 GPa

C) 0.56 ± 0.04 GPa

D) 0.56 ± 0.02 GPa

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 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

a Ethylamine(C2H5-NH2)

b NH3

c Ethyl alcohol

d Diethy ether(C2H5-O-C2H5)

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}?write the physical quantity which has no unit and no dimension

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

^{1/2}V(V + b) where n, P, V & T are the number of moles, pressure, volume & temperature respectively & R is the universal gas constant. Find the dimensions of constant a in the above equation.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}.more accurate? Why?

i. 500.00kg.

ii. 0.0005kg.

iii. 6.00kg

Can a quantity have dimensions but still no units?

10

^{-6}10

^{6}6

-6

ans is given as -6..pls explain if its correct or not.

Find the dimension of a/b in the equation p=a-t

^{2}/bx where p is pressure,x is distance and t is time.what is the dimensional formula for heat?

If x=a+bt+ct

^{2 where x is in metres and t is in seconds.What is the unit of c?}What is the dimensional formula of light year?

check the accuracy:- F.S=1/2mv^2-1/2mu^2 where F=force & S= distance

A company manufacturing PVC pipes claims in an advertisement that the volume of water flowing out through the pipe in a given time is as per the equation V = KA^2ut where A is the area of cross section of the pipe, u is the speed of flow, t is the time and K is a dimensionless constant.

a) Name the principle that can be used to check the dimensional correctness of this equation.

b) Check the equation and state whether the claim can be correct.

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

if x=10.0

^{+}_{- }0.1 and y= 10.0^{+}^{-}0.1, find 2x-2y.^{2}, where F is force ,x is distance and t is the time.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.

One student doubts the expression for kinetic energy as MV

^{3}or Kinetic^{2}. How can you help him with the help of dimensional