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Recent questions tagged units-and-measurement
Questions
The dimensions of $RC$ is same as that of
jeemain
physics
class11
ch2
units-and-measurement
q33
easy
dimensional-formulae-and-analysis
asked
Jun 18, 2013
by
meena.p
1
answer
$ML^{-1}T^{-2}$ represents
jeemain
physics
class11
ch2
units-and-measurement
q32
easy
dimensional-formulae-and-analysis
asked
Jun 18, 2013
by
meena.p
1
answer
If $h$ - is plank constant,e charge then dimension of ohm is same as
jeemain
physics
class11
ch2
units-and-measurement
q21
medium
dimensional-formulae-and-analysis
asked
Jun 18, 2013
by
meena.p
1
answer
If $m$ is mass, $'Q'$ is charge and $B$ is magnetic induction $\large\frac{m}{BQ}$ has same dimension as
jeemain
physics
class11
ch2
units-and-measurement
q31
easy
dimensional-formulae-and-analysis
asked
Jun 18, 2013
by
meena.p
1
answer
If fundamental units of mass, length and time are each doubled, what happens to unit of energy
jeemain
physics
class11
ch2
units-and-measurement
q30
easy
dimensional-formulae-and-analysis
asked
Jun 18, 2013
by
meena.p
1
answer
A gas bubble from under water explosion oscillates with time period $T$ propotional to $P^xd^yE^z$ where $P$-pressure, $d$-density, $E$-energy, values of $x,y,z$ are
jeemain
physics
class11
ch2
units-and-measurement
q29
medium
dimensional-formulae-and-analysis
asked
Jun 18, 2013
by
meena.p
1
answer
Dimensional formula for electrical resistivity
jeemain
physics
class11
unit1
units-and-measurement
q28
medium
asked
Jun 18, 2013
by
meena.p
1
answer
When a copper sphere is heated maximum percentage change will be observed in
jeemain
physics
class11
ch2
units-and-measurement
q27
easy
accuracy-precision-and-errors-in-measurement
asked
Jun 18, 2013
by
meena.p
1
answer
The physical quantity not having the same dimensions are
jeemain
physics
class11
ch2
units-and-measurement
q26
easy
dimensional-formulae-and-analysis
asked
Jun 17, 2013
by
meena.p
1
answer
Dimensionless quantity
jeemain
physics
class11
ch2
units-and-measurement
q25
easy
dimensional-formulae-and-analysis
asked
Jun 17, 2013
by
meena.p
1
answer
The dimensions of $RC$, where $R$ is resistence and $C$ is capacitance are same as that of
jeemain
physics
class11
ch2
units-and-measurement
q24
easy
dimensional-formulae-and-analysis
asked
Jun 17, 2013
by
meena.p
1
answer
The dimensions of $CV^2$ match with the dimensions of
jeemain
physics
class11
ch2
units-and-measurement
q23
easy
dimensional-formulae-and-analysis
asked
Jun 17, 2013
by
meena.p
1
answer
Dimensional formula for the product of two physical quantities $P$ and $Q$ is $ ML^2T^{-2}$. The dimensional formula for $\large \frac{P}{Q}$ is $ML^0T^{-2}$. $P$ and $Q$ are
jeemain
physics
class11
ch2
units-and-measurement
q22
easy
dimensional-formulae-and-analysis
asked
Jun 17, 2013
by
meena.p
1
answer
Dimensional formula for $\large\frac{L}{RCV}$ is
jeemain
physics
class11
ch2
units-and-measurement
q20
easy
dimensional-formulae-and-analysis
asked
Jun 17, 2013
by
meena.p
1
answer
Pick the odd one out -
jeemain
physics
class11
ch1
units-and-measurement
q19
easy
international-system-of-units
asked
Jun 17, 2013
by
meena.p
1
answer
The quantity represented by $\large\frac{\text{mass} \times \text{pressure}}{\text{density}}$ is
jeemain
physics
class11
ch2
units-and-measurement
q18
easy
dimensional-formulae-and-analysis
asked
Jun 17, 2013
by
meena.p
1
answer
An athletic coach told his team that muscle times speed is equal to power. What dimension does he view for muscle ?
jeemain
physics
class11
ch2
units-and-measurement
q17
easy
dimensional-formulae-and-analysis
asked
Jun 17, 2013
by
meena.p
1
answer
The initial and final temperature of a liquid in a container are observe to be $76.3 \pm0.5 ^{\circ} c$ and $27.7 \pm 0.2 ^{\circ} c$. Find the fall in temperature.
jeemain
physics
class11
ch2
units-and-measurement
q16
easy
accuracy-precision-and-errors-in-measurement
asked
Jun 17, 2013
by
meena.p
1
answer
Volt is equivalent to
jeemain
physics
class11
ch2
units-and-measurement
q15
easy
international-system-of-units
asked
Jun 17, 2013
by
meena.p
1
answer
The value of Kinetic energy $K$ and potential energy $V$ are measured as follows $K=100.0 \pm 2.0\; I \quad V=200.0 \pm 1.0\; I$. What is the percentage error in measurement of mechanical energy ?
jeemain
physics
class11
ch2
units-and-measurement
q14
medium
accuracy-precision-and-errors-in-measurement
asked
Jun 17, 2013
by
meena.p
1
answer
Find the value of $\large\frac{1.53 \times 0.9995}{1.592}$ with regards for 3 significant figures.
jeemain
physics
class11
ch2
units-and-measurement
q13
easy
significant-figure
asked
Jun 17, 2013
by
meena.p
1
answer
If the equation $y=A \cos (Bx-Ct)$ describe the motion of objects ( where $x$ and $y$ are displacements, $t$ is time ), what must be the units of variables $A,B$ and $C$ ?
jeemain
physics
class11
ch2
units-and-measurement
q12
easy
international-system-of-units
asked
Jun 17, 2013
by
meena.p
1
answer
Suppose we are told that the acceleration $A$ of a particle moving with uniform speed $v$ in a circle of radius $r$ is proportional to some power of r, say $r^n$, and some power of v, say $v^m$. Which of the following is the simplest form of an equation for the acceleration?
jeemain
physics
class11
ch2
units-and-measurement
medium
dimensional-formulae-and-analysis
asked
Jun 17, 2013
by
meena.p
1
answer
The position $x$ of a particle at time $t$ is given by $x=\large\frac{v_0}{a} $$(1-e^{-at})$ where $v_0$ is constant and $a >0$ find the dimensions of $v_0$ and $a$
jeemain
physics
class11
ch2
units-and-measurement
q10
medium
dimensional-formulae-and-analysis
asked
Jun 17, 2013
by
meena.p
1
answer
Two resistances are expressed as $R_1=(4\pm0.5) \Omega$ and $R_2=(12 \pm 0.5) \Omega$. what is the net resistance when they are connected 1) series 2) in parallel, with percentage error ?
jeemain
physics
class11
ch2
units-and-measurement
q9
medium
accuracy-precision-and-errors-in-measurement
asked
Jun 17, 2013
by
meena.p
1
answer
$\mu$ and $\in _0$ denote the permeability and permitting of free space, the dimensions of $\mu_0\in _0$ are
jeemain
physics
class11
ch2
units-and-measurement
q8
easy
dimensional-formulae-and-analysis
asked
Jun 17, 2013
by
meena.p
1
answer
The unit of L / R is (L=inductance and R=resistance)
jeemain
physics
class11
ch2
units-and-measurement
q7
easy
international-system-of-units
asked
Jun 17, 2013
by
meena.p
1
answer
In a certain system, $1$ unit of time is $5\;sec,$ 1 unit of mass is $20 \;kg$ and 1 unit of length is $10 m$. In this system $1$ unit of power corresponds to
jeemain
physics
class11
ch2
units-and-measurement
q6
easy
dimensional-formulae-and-analysis
asked
Jun 16, 2013
by
meena.p
1
answer
$E,m,J$ and $ G$ denote energy,mass angular momentum and gravitational constant respectively then the dimension of $\large\frac{EJ^2}{m^5G^2}$ are
jeemain
physics
class11
ch2
units-and-measurement
q5
easy
dimensional-formulae-and-analysis
asked
Jun 16, 2013
by
meena.p
1
answer
Identify the pair whose dimensions are equal
jeemain
physics
class11
ch2
units-and-measurement
q4
easy
dimensional-formulae-and-analysis
asked
Jun 16, 2013
by
meena.p
1
answer
If force, acceleration and time are taken as fundamental qualities, then the dimension of length will be
jeemain
physics
class11
ch2
units-and-measurement
q3
easy
dimensional-formulae-and-analysis
asked
Jun 15, 2013
by
meena.p
1
answer
If $C$ is capacity and $V$ is the potential across the condenser, what will be the dimensional representation of $\large\frac{1}{2}$$CV^2$
jeemain
physics
class11
ch2
units-and-measurement
q2
easy
dimensional-formulae-and-analysis
asked
Jun 15, 2013
by
meena.p
1
answer
The equation of state of some gases can be expressed as $ \bigg(p+\large\frac{a}{v^2}\bigg)$$(v-b)=RT$ Here $p$ is pressure, $v$ is volume , $a,b,R$ are constants. The dimensions of $ 'a'$ are
jeemain
physics
class11
ch2
units-and-measurement
q1
easy
dimensional-formulae-and-analysis
asked
Jun 13, 2013
by
meena.p
1
answer
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