NEET Physics MCQ: NCERT Unit Conversion & Dimensions

🎯Topic:Conversion Of Units For One System To Another

🔄Ncert Concepts :Dimensions, Physical Quantities, Units

Related Questions

The dimensions of coefficient of thermal conductivity is

$M{L^2}{T^{ - 2}}{K^{ - 1}}$

$ML{T^{ - 3}}{K^{ - 1}}$

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

$ML{T^{ - 3}}K$

Question Tags

🎯Topic:Conversion Of Units For One System To Another

🔄Ncert Concepts :Thermal Conductivity, Dimensional Analysis

The dimensions of resistivity in terms of M,L,T and Q where Q stands for the dimensions of charge, is

$M{L^3}{T^{ - 1}}{Q^{ - 2}}$

$M{L^3}{T^{ - 2}}{Q^{ - 1}}$

$M{L^2}{T^{ - 1}}{Q^{ - 1}}$

$ML{T^{ - 1}}{Q^{ - 1}}$

Question Tags

🎯Topic:Conversion Of Units For One System To Another

⚡ Time Required :3 mins

🔄Ncert Concepts :Resistivity, Dimensional Analysis, Charge, Current

The dimensions of Planck’s constant are

$\left[ {{{\rm{M}}^2}{{\rm{L}}^2}{{\rm{T}}^{ - 2}}} \right]$

$\left[ {{\rm{ML}}{{\rm{T}}^{ - 2}}} \right]$

$\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 2}}} \right]$

$\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 1}}} \right]$

Question Tags

🎯Topic:Conversion Of Units For One System To Another

🔄Ncert Concepts :Planck's constant, Dimensional analysis, Energy, Frequency

Coefficient of thermal conductivity has the dimensions

$\left[ {{\rm{ML}}{{\rm{T}}^{ - 3}}{{\rm{K}}^{ - 1}}} \right]$

$\left[ {{\rm{M}}{{\rm{L}}^3}{{\rm{T}}^3}{{\rm{K}}^2}} \right]$

$\left[ {{\rm{M}}{{\rm{L}}^3}{{\rm{T}}^{ - 3}}{{\rm{K}}^{ - 2}}} \right]$

$\left[ {{{\rm{M}}^2}{{\rm{L}}^3}{{\rm{T}}^{ - 3}}{{\rm{K}}^2}} \right]$

Question Tags

🎯Topic:Conversion Of Units For One System To Another

🔄Ncert Concepts :Thermal conductivity, Dimensional analysis

What is the dimensional formula of $\frac{{{\rm{planck}}\,{\rm{s\;constant}}}}{{{\rm{linear\;momentum}}}}?$

[L]

[T]

[M]

[M L T]

Question Tags

🎯Topic:Conversion Of Units For One System To Another

🔄Ncert Concepts :dimensional analysis, planck's constant, linear momentum

Which one of the following does not have the same dimensions

Work and energy

Angle and strain

Relative density and refractive index

Planck constant and energy

Question Tags

🎯Topic:Conversion Of Units For One System To Another

🔄Ncert Concepts :Dimensional analysis, Work, Energy, Angle, Strain, Relative density, Refractive index, Planck constant

The dimensional formula for impulse is same as the dimensional formula for

Momentum

Force

Rate of change of momentum

Torque

Question Tags

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Understanding

🔄Ncert Concepts :Impulse, Momentum, Dimensional Analysis

The dimensional formula of $\frac{1}{{{\varepsilon _0}}}\frac{{{e^2}}}{{hc}}$ is

$\left[ {{{\rm{M}}^0}{{\rm{L}}^0}{{\rm{T}}^0}{{\rm{A}}^0}} \right]$

$\left[ {{{\rm{M}}^{ - 1}}{{\rm{L}}^3}{{\rm{T}}^2}{\rm{A}}} \right]$

$\left[ {{\rm{M}}{{\rm{L}}^3}{{\rm{T}}^{ - 4}}{{\rm{A}}^{ - 2}}} \right]$

$\left[ {{{\rm{M}}^{ - 1}}{{\rm{L}}^{ - 3}}{{\rm{T}}^4}} \right]$

Question Tags

🎯Topic:Conversion Of Units For One System To Another

⚡ Time Required :3 mins

🔄Ncert Concepts :Dimensional Analysis, Permittivity of Free Space, Elementary Charge, Planck's Constant, Speed of Light

Dimensions of ohm are same as (h-Planck’s constant, e-charge)

h/e

${h^2}/e$

$h/{e^2}$

${h^2}{e^2}$

Question Tags

🎯Topic:Conversion Of Units For One System To Another

⚡ Time Required :3 mins

🔄Ncert Concepts :Ohm's law, Planck's constant, Charge, Dimensional Analysis

10.

Dimensions of kinetic energy are

$M{L^2}{T^{ - 2}}$

${M^2}L{T^{ - 1}}$

$M{L^2}{T^{ - 1}}$

$M{L^3}{T^{ - 1}}$

Question Tags

🎯Topic:Conversion Of Units For One System To Another

🎯Difficulty :Easy