If radius of the sphere is (5.3 ± 0.1)cm. Then percentage error in its volume will be 

(1) $3+6.01\times \frac{100}{5.3}$

(2) $\frac{1}{3}\times 0.01\times \frac{100}{5.3}$

(3) $\left(\frac{{\displaystyle 3\times 0.1}}{{\displaystyle 5.3}}\right)\times 100$

(4) $\frac{0.1}{5.3}\times 100$

The pressure on a square plate is measured by measuring the force on the plate and the length of the sides of the plate. If the maximum error in the measurement of force and length are respectively 4% and 2%, The maximum error in the measurement of pressure is 

(1) 1%

(2) 2%

(3) 6%

(4) 8%

While measuring the acceleration due to gravity by a simple pendulum, a student makes a positive error of 1% in the length of the pendulum and a negative error of 3% in the value of time period. His percentage error in the measurement of g by the relation $g=4{\pi }^2(l/T^2)$ will be

(1) 2%

(2) 4%

(3) 7%

(4) 10%

If the unit of force and length each be increased by four times, then the unit of energy is increased by 

(1) 16 times

(2) 8 times

(3) 2 times

(4) 4 times

If energy (\(E\)), velocity (\(v\)) and time (\(T\)) are chosen as the fundamental quantities, the dimensional formula of surface tension will be:
1. \( {\left[E v^{-2} T^{-1}\right]} \)
2. \( {\left[E v^{-1} T^{-2}\right]} \)
3. \( {\left[E v^{-2} T^{-2}\right]} \)
4. \({\left[E^{-2} v^{-1} T^{-3}\right]}\)

If dimensions of critical velocity v_c of a liquid flowing through a tube are expressed as [$\eta$^xρ^yr^z]  , where $\eta$, ρ and r are the coefficent of viscocity of liquid, density of liquid and radius of the tube respectively, then the values of x,y and z are given by

1. 1,-1,-1

2. -1,-1,1

3. -1,-1,-1

4. 1,1,1

If force (F), velocity (v) and time (T) are taken as fundamental units, then the dimensions of mass are:

(a) [FvT^-1]

(b) [FvT^-2]

(c) [Fv^-1T^-1]

(d) [Fv^-1T]

In an experiment four quantities a, b, c and d are measured with percentage error 1%,2%,3% and 4% respectively. Quantity P is calculated as follows P=a³b²/cd %, Error in P is

1. 14%

2. 10%

3. 7%

4. 4%

The dimension of $({\mathrm{\mu }}_0{\mathrm{\epsilon }}_0{)}^{-1/2}$ are 

(1) $\left[{\mathrm{L}}^{-1} \mathrm{T}\right]$

(2) $\left[{\mathrm{LT}}^{-1}\right]$

(3) $\left[{\mathrm{L}}^{-1/2}{\mathrm{T}}^{1/2}\right]$

(4) $\left[{\mathrm{L}}^{1/2}{\mathrm{T}}^{-1/2}\right]$

The density of material in CGS system of units is $4g/c{m}^3.$ In a system of units in which unit of length is 10cm and unit of mass is 100g, then the value of density of material in this system will be-

(1)0.4

(2)40

(3)400

(4)0.04