Physics

# Match list - I with list - II and select the correct answer :

 Spring constant $M^1\,L^2\,T^{-2}$ Pascal $M^0\,L^0\,T^{-1}$ Hertz $M^1\,L^0\,T^{-2}$ Joule $M^1\,L^{-1}\,T^{-2}$

2,7,9,12

##### SOLUTION
Spring constant : $k =\dfrac{F}{x} = \dfrac{MLT^{-2}}{L}=M^1L^0T^{-2}$, Hence A->3
Pascal: $P = \dfrac{F}{A} = \dfrac{MLT^{-2}}{L^2} = M^1L^{-1}T^{-2}$ , Hence B->4
Hertz: $f =\dfrac{1}{T} = M^0L^0T^{-1}$, Hence, C->2
Joule: $W= F \times distance = M^1L^2T^{-2}$, Hence D->1

Its FREE, you're just one step away

Matrix Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 199

#### Realted Questions

Q1 Subjective Medium
$574g$ of a substance occupies $12cm^3$ Express its density by keeping the significant figure in view.

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Single Correct Medium
The radius of a hydrogen atom is $0.5\mathring{A}$. Find the order of magnitude of volume of $1$ mole hydrogen in $m^3$. Given that 1 mole of hydrogen has $6.02 \times 10^{23}$ hydrogen atoms.
• A. $2\times10^{-4} m^3$
• B. $10^{-3} m^3$
• C. $10^{-7} m^3$
• D. $10^{-2} m^3$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
$L$, $C$ and $R$ represents the physical quantities, inductance, capacitance and resistance respectively. The combinations which have the dimensions of frequency are:
• A. $1/RC$
• B. $RC/L$
• C. $1/\sqrt {LRC}$
• D. $C/L$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
The dimensions of $\frac{1}{{{\mu _0}{ \in _0}}}$ is (where symbols have their usual menaing)
• A. $\left[ {{L^2}{T^{ - 2}}} \right]$
• B. $[A]$
• C. $[ML^2T^{-2}]$
• D. $[ML^{-2}T^{-2}$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Single Correct Medium
What is the value of $1$ fermi in $m$?
• A. $10^{-3}$
• B. $10^{-6}$
• C. $10^{15}$
• D. $10^{-15}$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020