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Syllabus

WHAT IS DIMENSIONAL FORMULA OF PERMITTIVITY OF VACUUM

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

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 fullform of SONAR and Radar?

What is the dimensional formula for capacitance?

^{-5}erg s^{-1}cm^{-2}K^{-4}. How to write its value in SI unitswhat is dimensional formula of young modulus

i)(a+b)

ii)(a-b)

iii)ab

iv)a/b

given delta a and delta b are absolute errors in measurements of and b

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

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).

find the dimensional formula of resistance R

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

write the physical quantity which has no unit and no dimension

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

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

universal gas constant dimensional formulae

what is Weber and Weber/m

^{2}is equal to?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}?What is the dimensional formula of capacity?

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

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

DEtermine the dimensionl formula for potential difference

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

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

using dimensional analysis derive the relation :-

s=ut + 1/2 at

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

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.

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}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.

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 .

^{b}s^{c/2}d^{a/4}.it is observed that the time period is directly proportional to d^{1/2}/s^{1/2}.then what is value of bS

_{nth}_{}=u + ( a / 2 )(2n-1) Check whether this equation is dimensionally correct or not.Describe a method for measuring the molecular size of oleic acid

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

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?????derivation of three laws of motion

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 .

write the advantages and disadvantages of dimensional analysis?

radius of a circle is 0.6%. Find the

percentage error in the calculation of the area

of the circle.

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.

If 1unit of mass= 4kg, 1unit of length=1/4m and 1unit of time = 5sec, then 1Joule = x units of energy in this system where x=

a. 100units b. 0.01units c.200units d.0.02units

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?

convert a pressure of one atmospheric(=10

^{5 }N m^{2})into dyne cm^{-2}..could anyone please explain with detailed steps?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 :

correctness of dimensitional formula v=u+at

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 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.

Does the magnitude of a physical quantity change with change in system of units?WHY OR WHY NOT????PLZZZZZ ANSWER SOON

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

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)

more accurate? Why?

i. 500.00kg.

ii. 0.0005kg.

iii. 6.00kg

What is the dimensional formula of E=mc

^{2}?dimensional formula of speed of light????

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

check the dimensional accuracy of the relation T=2pie root l/g?

prove that 1/2 mv

^{2}=mghTwo 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}.Can a quantity have dimensions but still no units?

1. 75, 75 2. 110, 70 3. 110, 110 4. 110, 40

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.(A) displacement

(B) velocity

(C) acceleration

(D) angle

what is the dimensional formula for heat?

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

If x=a+bt+ct

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

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

Check the dimensional consistency of the following equations.

(i) de brogile's wavelength ,λ=h/mv

(ii)Escape velocity,v=√2GM/R

the units from one system to another.

a) Name the principle used for the above purpose.

b) Using dimensions, prove 1 Newton=10^5 dyne.

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.

^{-2}. find the value of ms^{-2}(S I system).