- Exam
- JEE Main
- Year
- 2023
- Date
- 10 April
- Shift
- Evening Shift
- Subject
- Physics
- Chapter
- Laws of Motion
JEE Main 2023 · 10 April · Evening Shift · Physics · Laws of Motion
Given below are two statements: one is labelled as Assertion A and...
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A : An electric fan continues to rotate for some time after the current is switched off.
Reason R: Fan continues to rotate due to inertia of motion.
In the light of above statements, choose the most appropriate answer from the options given below.
Options
- AA is correct but R is not correct
- BA is not correct but R is correct
- CBoth A and R are correct and R is the correct explanation of A
- DBoth A and R are correct but R is NOT the correct explanation of A
Correct answer
C. Both A and R are correct and R is the correct explanation of A
Step-by-step solution
When a fan is rotating, it acquires some kinetic energy. When the switch is off, because of its motion, it continues rotating for some time until it stops because of the air friction. So it is due to inertia of motion that fan continues to rotate.
Hence, both A and R are correct and R is the correct explanation of A.