Assertion : Scientist prefer metric system of units.
Reason : In metric system, there are factors of 10 which are easier to remember.
(1) Both assertion and reason are true. (2) Both assertion and reason are false. (3) Assertion is true, reason is false. (4) Assertion is false, reason is true.
Both assertion and reason are true.
The metric system is based upon powers of ten. It is convenient because a measurement in the metric system that is represented by a rational number remains a rational number after metric unit conversion.
For example, 250 mm = 25 cm = .25 m
In contrast other unit systems like English system, do not have the same property
For example, 250 inches = 20.8333... ft = 0.0039457... mile
So, scientists prefer metric system
Related Articles
- Assertion \( (A) \) : In the case of a rainbow, light at the inner surface of the water drop gets internally reflected.Reason \( (\mathrm{R}) \); The angle between the refracted ray and normal to the drop surface is greater than the critical angle.(A) Both Assertion and Reason are true and Reason is the correct explanation of the Assertion.(B) Both Assertion and Reason are true but Reason is not a correct explanation of the Assertion(C) Assertion is true but the Reason is false(D) Both Assertion and Reason are false.
- Assertion and Reason type question:Assertion: Light travels in a straight line. Reason: Transparent objects allow all the light to pass through them.(A) Both A and R are true and \( \mathrm{R} \) is the correct explanation of the assertion.(B) Both \( A \) and \( R \) are true but \( R \) is not the correct explanation of the assertion.(C) \( A \) is true but \( R \) is false.(D) \( A \) is false but \( R \) is true
- For question numbers 14, 15 and 16, two statements are given- one labeled Assertion (A) and other labeled Reason (R). Select the correct answer to these questions from the codes (a) Assertion (a), (b), (c) and (d) as given below:(a) Both A and R are true, and R is the correct explanation of the assertion.(b) Both A and R are true, and R is not the correct explanation of the assertion.(c) A is true, but R is false. (d) A is false, but R is true.
- Assertion (A): Esterification 1s a process m which a sweet smelling substance is produced.Reason (R): When esters relict with sodium hydroxide an alcohol and sodium salt of carboxylic acid are obtained.(a) Both A and R are true and R is correct explanation of the Assertion.(b) Both A and R are true but R is not the correct explanation of the Assertion.(c) A is true but R is false.(d) A is false but R is true.
- Two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:Assertion (A): Following are the members of a homologous series: CH3OH, CH3CH2OH, CH3CH2CH2OHReason (R): A series of compounds with same functional group but differing by – CH2– unit is called a homologous series.(a) Both (A) and (R) are true and (R) is correct explanation of the assertion.(b) Both (A) and (R) are true but (R) is not the correct explanation of the assertion.(c) (A) is true but (R) is false.(d) (A) is false but (R) is true.
- Two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:Assertion (A): Following is a balanced chemical equation for the action of steam on iron : $3Fe + 4H_2O \rightarrow Fe_3O_4 + 4H_2$ Reason (R): The law of conservation of mass holds good for a chemical equation.(a) Both (A) and (R) are true and (R) is the correct explanation of the assertion (A).(b) Both (A) and (R) are true, but (R) is not the correct explanation of the assertion (A).(c) (A) is true, but (R) is false.(d) (A) is false, but (R) is true.
- Assertion (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H1OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144.(a) Both A and R are true and R is the correct explanation of the Assertion.(b) Both A and R are true but R is not the correct explanation of the Assertion.(c) A is true but R is false.(d) A is false but R is true.
- DIRECTIONS: The questions in this segment consists of two statements, one labelled as Assertion A"and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so
- In the following question, two statements are given - one labelled Assertion (A) and the other labelled Reason (R):Assertion (A): If hundreds or thousands of electric bulbs are to be joined for decorating a building, then they should be connected in series with the mainline.Reason (R): When a large number of electric bulbs are connected in series, they can be controlled with just one switch.Select the correct answer to the above question from the following options:(a) Both A and R are true, and R is the correct explanation of the assertion. (b) Both A and R are true, but is not the correct explanation of the assertion.(c) A is true but R is false.(d) A is false but R is true.
- For question numbers 13 and 14, two statements are given – one labeled as Assertion (A) and the other labeled as Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below :Assertion (A): Ethanoic acid is also known as glacial acetic acid.Reason (R): The melting point of pure ethanoic acid is 290 K and hence it often freezes during winters in cold climates.(a) Both (A) and (R) are true and (R) is correct explanation of the assertion.(b) Both (A) and (R) are true but (R) is not the correct explanation of the assertion.(c) (A) is true but (R) is false.(d) (A) is false but (R) is true.
- In the following question, two statements are given --one labelled Assertion (A) and the other labelled Reason (R).Assertion (A): In humans, if gene b gives blue eyes and gene B gives brown eyes then the colour of the eyes of a person having Bb combination of genes will be blue.Reason (R): The recessive gene cannot show its effect in the presence of dominant gene.Select the correct answer to the above question from the following options:(a) Both A and R are true, and R is the correct explanation of the assertion. (b) Both A and R are true, but is not the correct explanation of the assertion.(c) A is true but Ris false.(d) A is false but R is true.
- Two statements are given - one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (i), (ii), (iii) and (iv) as given below.Assertion (A): Carbon has a strong tendency to either lose or gain electrons to attain noble gas configuration. Reason (R): Carbon has four electrons in its outermost shell and has the tendency to share electrons with carbon or other elements. (i) Both (A) and (R) are true and (R) is correct explanation of the assertion (A). (ii) Both (A) and (R) are true, but (R) is not the correct explanation of the assertion (A). (iii) (A) is true, but (R) is false. (iv) (A) is false, but (R) is true.
- Magnesium is a non-combustible substance. (True or False and if it is false give reason).
- In the following question, two statements are given - one labelled Assertion (A) and the other labelled Reason (R).Assertion (A): A fuse wire is always connected in series with the mainline
- Are the following statements true or false?Give reason for your answer.Every integer is a rational number.
Kickstart Your Career
Get certified by completing the course
Get Started
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies