Recent questions tagged easy

If P(A) = $\large \frac{1}{2}$ and P(B) = 0, then P$\large(\frac{A}{B})$ is?

asked Jun 18, 2013 by balaji.thirumalai

1 answer

A fair die is rolled. Consider events E = {1,3,5}, F = {2,3} and G = {2,3,4,5}. Calculate $ P \large ( \large \frac{ E \cup F}{G})$ and $ P \large ( \large \frac{ E \cap F}{G})$

asked Jun 18, 2013 by balaji.thirumalai

1 answer

A fair die is rolled. Consider events E = {1,3,5}, F = {2,3} and G = {2,3,4,5}. Calculate P(E/G) and P(G/E).

asked Jun 18, 2013 by balaji.thirumalai

1 answer

A fair die is rolled. Consider events E = {1,3,5}, F = {2,3} and G = {2,3,4,5}. Find P(E|F) and P (F|E),

asked Jun 18, 2013 by balaji.thirumalai

1 answer

The following equation describe the motion of object where $x$ is displacement, $v,v_0$ are velocities, $m$ mass $V=Axe^{Bm}-\large\frac{c^2}{v^0}$. What must be the unit of $A$ and $B$?

asked Jun 18, 2013 by meena.p

1 answer

A black and a red dice are rolled. Find the conditional probability of obtaining a sum greater than 9, given that the black die resulted in a 5.

asked Jun 18, 2013 by balaji.thirumalai

1 answer

The kinetic energy of rotation k depends on angular momentum J and moment of inertia I.The expression for kinetic energy is ( where c is a constant )

asked Jun 18, 2013 by meena.p

1 answer

Curie is a unit of

asked Jun 18, 2013 by meena.p

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Determine P(E|F) when a coin is tossed three times, where E : at least two heads , F : at most two heads

asked Jun 18, 2013 by balaji.thirumalai

1 answer

Determine P(E|F) when a coin is tossed three times, where E : head on third toss , F : heads on first two tosses

asked Jun 18, 2013 by balaji.thirumalai

1 answer

The volume of a cube is $1.83 \;cm^3$. Find the volume of $25$ such identical cubes to correct number of significant figures.

asked Jun 18, 2013 by meena.p

1 answer

Dimensional analysis of equation (velocity)$^x$=(pressure difference)$^{\Large\frac{3}{2}}$(density)$^{\Large\frac{-3}{2}}$ give values of $x$ to be

asked Jun 18, 2013 by meena.p

1 answer

If pressure $P$, velocity $V$ and $T$ are taken as fundamental physical quantities the dimensional formula of force is

asked Jun 18, 2013 by meena.p

1 answer

Energy density and pressure have

asked Jun 18, 2013 by meena.p

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Of the following quantities which one has dimensions different from the remaining three ?

asked Jun 18, 2013 by meena.p

1 answer

The dimensions of $RC$ is same as that of

asked Jun 18, 2013 by meena.p

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$ML^{-1}T^{-2}$ represents

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

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

asked Jun 18, 2013 by meena.p

1 answer

When a copper sphere is heated maximum percentage change will be observed in

asked Jun 18, 2013 by meena.p

1 answer

The physical quantity not having the same dimensions are

asked Jun 17, 2013 by meena.p

1 answer

Dimensionless quantity

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

asked Jun 17, 2013 by meena.p

1 answer

The dimensions of $CV^2$ match with the dimensions of

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

asked Jun 17, 2013 by meena.p

1 answer

Dimensional formula for $\large\frac{L}{RCV}$ is

asked Jun 17, 2013 by meena.p

1 answer

Pick the odd one out -

asked Jun 17, 2013 by meena.p

1 answer

The quantity represented by $\large\frac{\text{mass} \times \text{pressure}}{\text{density}}$ is

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 ?

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.

asked Jun 17, 2013 by meena.p

1 answer

Volt is equivalent to

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.

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 $C$ ?

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

asked Jun 17, 2013 by meena.p

1 answer

The unit of L / R is (L=inductance and R=resistance)

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

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

asked Jun 16, 2013 by meena.p

1 answer

Identify the pair whose dimensions are equal

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

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$

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

asked Jun 13, 2013 by meena.p

1 answer

Find the angle between the pairs of lines: $ \overrightarrow r = 3\hat i + \hat j -2\hat k + \lambda (\hat i - \hat j -2\hat k)\: and \: \overrightarrow r = 2\hat i - \hat j-56 \hat k+ \mu (3 \hat i -5\hat j - 4\hat k) $

asked Jun 5, 2013 by meena.p

1 answer

In the following cases,find the distance of each of the given points from the corresponding given plane $(c)\;$Point (2,3,-5);Plane $(x+2y-2z-9=0)$

asked Jun 4, 2013 by sreemathi.v

1 answer

In the following cases,find the distance of each of the given points from the corresponding given plane $(b)\;$Point (3,-2,1);Plane $(2x-y+2z+3=0)$

asked Jun 4, 2013 by sreemathi.v

1 answer

The identity element of the binary operation $\large $ defined on $Q-\{0\}$ as $a\large $ $b=\large\frac{ab}{2},$ $ \forall \:a,b\:\in\:Q-\{0\}$

asked May 31, 2013 by rvidyagovindarajan_1

1 answer

If a relation $R$ on the set $\{1,2,3\}$ is defined as $R=\{(1,2)\}$, then $R$ is

asked May 31, 2013 by rvidyagovindarajan_1

1 answer

If $f:[0,1]\rightarrow\:[0,1]$ is defined as $f(x)=\left \{\begin {array}{c,c}x &if\:x\:is\:rational\\1-x & if\:x\:is\:irrational\end {array}\right.$ then $fof(x)=?$

asked May 31, 2013 by rvidyagovindarajan_1

1 answer

The number of bijection mappings that are possible from $Set \:A$ containing 5 elements to $Set\:B$ containing 6 elements is ?

asked May 31, 2013 by rvidyagovindarajan_1

1 answer

The maximum number of equivalence relations on the set $A=\{1,2,3\}$ is?

asked May 31, 2013 by rvidyagovindarajan_1

1 answer

If $P=\{x:sinx-cosx=\sqrt2 cosx\}$ and $Q=\{x:sinx+cosx=\sqrt 2 sinx\}$ then which of the following is true ?

asked May 30, 2013 by rvidyagovindarajan_1

1 answer

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