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Syllabus

WHAT IS DIMENSIONAL FORMULA OF PERMITTIVITY OF VACUUM

A dimensionless quantity --

a)Never has a unit

b)Always has a unit

c)May have a unit

d)does not exist

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

what is the fullform of SONAR and Radar?

What is the dimensional formula for capacitance?

what is Weber and Weber/m

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

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

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!!!!.

find the dimensional formula of resistance R

more accurate? Why?

i. 500.00kg.

ii. 0.0005kg.

iii. 6.00kg

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

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

Check 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.

difference between fundamental unit and derived unit

^{3}, f has the dimension of?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 smallest and biggest unit of mass,time,length. plz answer fast.

.

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

DEtermine the dimensionl formula for potential difference

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.

using dimensional analysis derive the relation :-

s=ut + 1/2 at

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

One student doubts the expression for kinetic energy as MV

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

^{3}B^{1}^{/2}/CD^{3}^{/2}what is the dimensional formula of amplitude?

A. 8 units, (180 - 37 degree)

B. 10 units, 37 degree

C. 10 Units, 53 degree

D. 8 Units, 53 degree

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 .

S

_{nth}_{}=u + ( a / 2 )(2n-1) Check whether this equation is dimensionally correct or not.What is Personal Error, Instrumental Error and Random Error? Explain with giving an example?

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

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

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

derivation of three laws of motion

I didnt understood what is plane angle and solid angle please explain me.

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 .

In the equation given below what are the SI units of C1 and C2, if y is in metre and t is i second

Y = C1 sin C2T

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

u r given a thread and a meter scale. how will u estimate the diameter of the thread?

write the advantages and disadvantages of dimensional analysis?

check the correctness of the relation:

density = 3g/4 pi r G , where the letters have their usual meanings.

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 explaination^{-5}erg s^{-1}cm^{-2}K^{-4}. How to write its value in SI unitsThe 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 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.^{}dimensional formula for newton

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 :

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

correctness of dimensitional formula v=u+at

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

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.

a. length

b. gravity

c. rotational speed

d. viscosity

Explain with reason..

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)

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 the dimensional formula of E=mc

^{2}?Convert the value of 10 joule on a system which has 1000 grams, 10 cm and 30 seconds as fundamental units

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

solving equation:

a+b+c=0

-2a-2c=1

-a-3b+2c=0

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

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.It is desirable that the standards of units be easily available, invariable , indestructible and easily reproducible. If we use foot of a person as a standard unit of length, which of the above features are present and which are not/

what is the dimensional formula for heat?

if x=10.0

^{+}_{- }0.1 and y= 10.0^{+}^{-}0.1, find 2x-2y.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

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

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.