AP EAMCET · PHYSICS · Units and Dimensions
Assertion (A) : Energy per unit volume and angular momentum can be added dimensionally. Reason (R) : Physical quantities having same dimensions can be added or subtracted.
- A Both (A) and (R) are true and (R) is the correct explanation of (A)
- B Both (A) and (R) are true but (R) is not the correct explanation of (A)
- C (A) is true but (R) is false
- D (A) is false but (R) is true
Answer & Solution
Correct Answer
(D) (A) is false but (R) is true
Step-by-step Solution
Detailed explanation
The unit of energy per unit volume is, Jm3=J m-3 means, kg m-1 s-2 and the unit of angular momentum, mvr=kg m2 s-1 are not same so they can not be added, so we can say that same unit quantities can be added and subtracted and same unit quantities have…
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