NEET Physics MCQ: NCERT Units & Measurement | NEET.Guide Questions

The number of particles given by $n = - D\frac{{{n_2} - {n_1}}}{{{x_2} - {x_1}}}$ are crossing a unit area perpendicular to x-axis in unit time, where ${n_1}$ and ${n_2}$ are the number of particles per unit volume for the values ${x_1}$ and ${x_2}$ of x respectively. Then the dimensional formula of diffusion constant D is

A

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

B

$\left[ {{{\rm{M}}^0}{{\rm{L}}^2}{{\rm{T}}^{ - 4}}} \right]$

C

$\left[ {{{\rm{M}}^0}{\rm{L}}{{\rm{T}}^{ - 3}}} \right]$

D

$\left[ {{{\rm{M}}^0}{{\rm{L}}^2}{{\rm{T}}^{ - 1}}} \right]$

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Dimensional Analysis, Diffusion

Related Questions

The dimensions of $C{V^2}$ matches with the dimensions of

A

${L^2}I$

B

${L^2}{I^2}$

C

$L{I^2}$

D

$\frac{1}{{LI\;}}$

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Analyzing

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Capacitance, Voltage, Inductance, Dimensional Analysis

$\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 3}}{{\rm{A}}^{ - 2}}} \right]$ is the dimensional formula of

A

Resistance

B

Resistivity

C

Conductance

D

Conductivity

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Dimensional analysis, Electric potential, Electric resistance, Capacitance, Specific resistance

Dimensional formula of heat energy is

A

[MLT⁻²]

B

[ML²T⁻²]

C

[MLT⁻¹]

D

[ML²T⁻³]

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Dimensional analysis, Heat energy

The dimensional formula of magnetic permeability is

A

$\left[ {{{\rm{M}}^0}{{\rm{L}}^{ - 1}}{\rm{T}}} \right]$

B

$\left[ {{{\rm{M}}^0}{{\rm{L}}^2}{{\rm{T}}^{ - 1}}} \right]$

C

$\left[ {{{\rm{M}}^0}{{\rm{L}}^2}{{\rm{T}}^{ - 1}}{{\rm{A}}^2}} \right]$

D

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

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Magnetic permeability, Dimensional analysis, Force on a current carrying conductor

Dimension of electric current is

A

[A]

B

[A T]

C

[M L T⁻²]

D

[M L² T⁻³ A⁻¹]

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Dimensional Analysis, Electric Current

The dimensions of shear modulus are

A

$ML{T^{ - 1}}$

B

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

C

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

D

$ML{T^{ - 2}}$

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :Shear modulus, Dimensional analysis, Stress, Strain

A pressure of 1 atmosphere is equal to how many Pascals?

A

1013.25 Pa

B

101325 Pa

C

101.325 Pa

D

10.1325 Pa

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Unit Conversion, Pressure

The physical quantities not having same dimensions are

A

Torque and work

B

Momentum and Planck’s constant

C

Stress and Young’s modules

D

Speed and ${\left( {{{\rm{\mu }}_0}{{\rm{\varepsilon }}_0}} \right)^{ - 1/2}}$

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Analyzing

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Dimensional analysis, Torque, Work, Momentum, Planck's constant, Stress, Young's modulus, Speed, Permeability, Permittivity

The dimensions of electric potential are

A

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

B

$\left[ {{\rm{ML}}{{\rm{T}}^{ - 2}}{{\rm{Q}}^{ - 1}}} \right]$

C

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

D

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

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :electric potential, dimensional analysis, work, charge

$\left[ {M{L^2}{T^{ - 3}}} \right]$ is the dimension of

A

Work

B

Power

C

Force

D

Momentum

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Dimensional Analysis, Power, Work, Force, Momentum

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