NEET Physics Units And Measurement Conversion Of Units For One System To Another MCQs

Prepare for NEET Physics Units And Measurement (Conversion Of Units For One System To Another) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert solutions to master unit conversions in measurements.

NEET Questions / Physics / Units And Measurement / Conversion Of Units For One System To Another

Select Topic

Dimensional Formula

Conversion Of Units For One System To Another

Priniciple Of Homoginity

Dimensional Analysis

Deriving Equations

Limitations Of Dimensional Analysis

Percentage Error

Significant Figures

Rounding Of Numbers

A protein molecule's diameter is measured as 42 Å using X-ray diffraction. If another measurement instrument gives the diameter in picometers (pm), and the ratio of the two measurements is $\frac{x}{10}$ , what is the value of $x$ ?

A

100

B

1000

C

420

D

42

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :2 mins

🔄Ncert Concepts :Unit Conversion, Length, Scientific Notation

The ionization energy of hydrogen is 13.6 eV. Express this energy in joules per mole using the following conversions: 1 eV = $1.602 imes 10^{-19}$ J and Avogadro's number = $6.022 imes 10^{23}$ $mol^{-1}$ .

A

$1.31 imes 10^3$ J/mol

B

$2.18 imes 10^{-20}$ J/mol

C

$1.31 imes 10^6$ J/mol

D

$8.21 imes 10^5$ J/mol

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :2 mins

🔄Ncert Concepts :Unit Conversion, Energy, Mole Concept

The speed of light is approximately $3 imes 10^8$ m/s. If a star is 4 light-years away, what is its distance in kilometers? (1 light-year = distance light travels in one year)

A

$3.8 imes 10^{10}$ km

B

$1.2 imes 10^{13}$ km

C

$3.8 imes 10^{13}$ km

D

$1.2 imes 10^9$ km

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, Speed, Distance, Time

The density of a substance is given as 0.8 g/ $cm^3$ . Convert this density to kg/ $m^3$ .

A

8 kg/ $m^3$

B

80 kg/ $m^3$

C

800 kg/ $m^3$

D

8000 kg/ $m^3$

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :2 mins

🔄Ncert Concepts :Unit Conversion, Density

The Planck constant is $6.626 imes 10^{-34}$ J s. Express this in units of eV s (electron-volt seconds), given 1 eV = $1.602 imes 10^{-19}$ J.

A

$4.136 imes 10^{-15}$ eV s

B

$1.062 imes 10^{-52}$ eV s

C

$2.418 imes 10^{14}$ eV s

D

$6.626 imes 10^{-15}$ eV s

Question Tags

📚 Subject:Physics

📑 Chapter:Units And Measurement

🎯Topic:Conversion Of Units For One System To Another

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :2 mins

🔄Ncert Concepts :Unit Conversion, Energy, Planck's Constant

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

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

A rectangular field is 200 m long and 150 m wide. What is its area in hectares?

A

2 hectares

B

3 hectares

C

4 hectares

D

5 hectares

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, Area

Convert 5000 mL to liters.

A

0.5 L

B

5 L

C

50 L

D

500 L

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, Volume

How many milligrams are there in 2 grams?

A

20 mg

B

200 mg

C

2000 mg

D

0.002 mg

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, Mass

Showing 1 to 10 of 208 entries

NEET Subjects

Our Bots

Company