Physics

# The dimensions of Hubble's constant are

##### ANSWER

$[T^{-1}]$

##### SOLUTION
Hubble's constant, $H=\dfrac {velocity}{distance}=\dfrac {[LT^{-1}]}{[L]}$
The Hubble Constant is the unit of measurement used to describe the expansion of the universe.

You're just one step away

Create your Digital Resume For FREE on your name's sub domain "yourname.wcard.io". Register Here!

Single Correct Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 202

#### Realted Questions

Q1 Multiple Correct Medium
The dimension $M{L^{ - 1}}{T^{ - 2}}$ may correspond to
• A. Work done by a force
• B. Linear momentum
• C. Pressure
• D. Energy per unit volume

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Single Correct Medium
The frequency of vibration of a string is given by $v=\dfrac { p }{ 2l } \left[ \dfrac { F }{ m } \right] ^{ \frac { 1 }{ 2 } }$.
Here $p$ is the number of segments in which the string is divided, $F$ is the tension in the string and $l$ is its length. The dimensional formula for $m$ is:
• A. ${ M }^{ 0 }{ L }^{ 0 }{ T }^{ 0 }$
• B. ${ ML }^{ -1 }{ T }^{ 0 }$
• C. ${ ML }^{ 0 }{ T }^{ -1 }$
• D. ${ M }^{ 0 }{ LT }^{ -1 }$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
Choose the $wrong$ statement
• A. An quantities may be represented dimensionally in terms of the base quantities
• B. A base quantity cannot be represented dimensionally in terms of the rest of the base quantities
• C. The dimension of a base quantity in other base quantities is always zero
• D. The dimension of a derived quantity is never zero in any base quantity

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
If $x=at+b{ t }^{ 2 }$ where $x$ is measured in $m$ and $t$ in $s$, then the dimension of $\left( { b }/{ a } \right)$ is:
• A. $[L{ T }^{ -2 }]$
• B. $[L{ T }^{ -1 }]$
• C. $[T]$
• D. $[{ T }^{ -1 }]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Subjective Medium
If $mu=A+\frac { B }{ \lambda } +\frac { C }{ \lambda ^ 2 }$ then find dimensions of A,B and C respectively (A,B,C are constant) where $\lambda$ is wavelength of wave

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020