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

A chemist measures a reaction rate as $2.5 imes 10^{-3}$ mol L $^{-1}$ $s^{-1}$ . Express this rate in molecules $cm^{-3}$ $\mu s^{-1}$ (molecules per cubic centimeter per microsecond). Avogadro's number = $6.022 imes 10^{23}$ molecules/mol.

A

$1.5 imes 10^{12}$ molecules $cm^{-3}$ $\mu s^{-1}$

B

$2.5 imes 10^{18}$ molecules $cm^{-3}$ $\mu s^{-1}$

C

$1.5 imes 10^{15}$ molecules $cm^{-3}$ $\mu s^{-1}$

D

$4.2 imes 10^{20}$ molecules $cm^{-3}$ $\mu s^{-1}$

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :3 mins

🔄Ncert Concepts :Unit Conversion, Reaction Rate, Avogadro's Number

Related Questions

R,L and C represent the physical quantities resistance, inductance and capacitance respectively. Which one of the following combination has dimension of frequency?

A

1/√(LC)

B

R/L

C

1/RC

D

1/√(LC), R/L and 1/RC

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, Frequency, Resistance, Inductance, Capacitance

R,L and C represent the physical quantities resistance, inductance and capacitance respectively. Which one of the following combination has dimension of frequency?

A

$\frac{1}{{\sqrt {RC} }}$

B

$\frac{R}{L}$

C

$\frac{1}{{LC}}$

D

$\frac{C}{L}$

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, Frequency, Resistance, Inductance, Capacitance

If C,R,L and I denote capacity, resistance, inductance and electric current respectively, the quantities having the same dimensions of time are $\left( 1 \right)\,CR,\,\,\left( 2 \right)\,\frac{L}{R}\,,\,\,\left( 3 \right)\,\sqrt {LC} \,\,\left( 4 \right)\,L{I^2}$

A

(1), (2) and (3)

B

(1), (2) and (4)

C

(1), (3) and (4)

D

(2), (3) and (4)

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 :Dimensional Analysis, Capacitance, Resistance, Inductance, Time Constant

If C and L denote capacitance and inductance respectively, then the dimensions of LC are

A

${M^0}{L^0}{T^0}$

B

${M^0}{L^0}\;{T^2}$

C

${M^2}{L^0}{T^2}$

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 :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Capacitance, Inductance, Dimensional Analysis

The dimension of quantity (L/RCV) is

A

[A]

B

$\left[ {{A^2}} \right]$

C

$\left[ {{A^{ - 1}}} \right]$

D

None of these

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Analyzing

🎯Difficulty :Medium

⚡ Time Required :3 mins

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

If L,C and R denote inductance, capacitance and resistance respectively, then which of the following combination has the dimension of time?

A

$\frac{C}{L}$

B

$\frac{1}{{RC}}$

C

$\frac{L}{R}$

D

$\frac{{RL}}{C}$

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, Inductance, Capacitance, Resistance

The unit of L/R is (where L=inductance and R= Resistance)

A

Sec

B

$Se{c^{ - 1}}$

C

Volt

D

Ampere

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 :Inductance, Resistance, Time Constant, Units Analysis

The dimensional formula of self-inductance is

A

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

B

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

C

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

D

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

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :self-inductance, dimensional analysis, energy, magnetic field

The dimensions of $\frac{R}{L}$ are

[here, R=electric resistance, L=self inductance]

A

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

B

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

C

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

D

$\left[ T \right]$

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, Electric Resistance, Self Inductance

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

NEET Subjects

Our Bots

Company