NEET Physics MCQ: NCERT Unit Conversion | NEET.Guide Questions

The ratio of SI. Unit of the CGS unit of Planck’s constant is

A

${10^7}:1$

B

${10^4}:1$

C

${10^6}:1$

D

$1:1$

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 :Planck's constant, SI units, CGS units, unit conversion

Related Questions

The dimensions of universal gas constant is

A

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

B

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

C

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

D

None of these

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 :Dimensional Analysis, Universal Gas Constant

Identify the pair which has different dimensions

A

Planck’s constant and angular momentum

B

Impulse and linear momentum

C

Angular momentum and frequency

D

Pressure and Young’s modulus

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, Planck's Constant, Angular Momentum, Impulse, Linear Momentum, Frequency, Pressure, Young's Modulus

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

Out of the following which pair of quantities do not have same dimensions

A

Planck’s constant and angular momentum

B

Work and energy

C

Pressure and Young’s modulus

D

Torque and moment of inertia

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, Planck's constant, Angular Momentum, Work, Energy, Pressure, Young's Modulus, Torque, Moment of Inertia

A car travels 100 km in 2 hours. What is its speed in m/s?

A

27.78 m/s

B

13.89 m/s

C

6.94 m/s

D

50 m/s

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Unit Conversion, Speed

The constant of proportionality $\frac{1}{{4{\rm{\pi }}{{\rm{\varepsilon }}_0}}}\;$ in Coulomb’s law has the following units

A

${{\rm{C}}^{ - 2}}{\rm{N}}{{\rm{m}}^2}$

B

${{\rm{C}}^2}{{\rm{N}}^{ - 1}}{{\rm{m}}^{ - 2}}$

C

${{\rm{C}}^2}{\rm{N}}{{\rm{m}}^2}$

D

${{\rm{C}}^{ - 2}}{{\rm{N}}^{ - 1}}{{\rm{m}}^{ - 2}}$

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 :Coulomb's Law, Units of Force, Units of Charge, Units of Distance, Permittivity of Free Space

The SI unit of gravitational potential is

A

J

B

${\rm{Jk}}{{\rm{g}}^{ - 1}}$

C

${\rm{Jkg}}$

D

${\rm{Jk}}{{\rm{g}}^2}$

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 :gravitational potential, SI units

The dimensions of Planck’s constant is same as that of

A

Angular momentum

B

Linear momentum

C

Work

D

Coefficient of viscosity

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 :Planck's constant, dimensions, angular momentum, linear momentum, work, coefficient of viscosity

The dimensions of surface tension are

A

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

B

$ML{T^{ - 2}}$

C

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

D

$M{T^{ - 2}}$

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 :surface tension, dimensional analysis

Which of the following is not a unit of energy

A

W-s

B

kg–m/sec

C

N-m

D

Joule

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Analyzing

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Energy, Units, Work, Power

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