Choose the correct statement(s) from the...

Choose the correct statement(s) from the given statements
(I) The proportionality constant in an equation can be obtained by dimensional analysis.
(II) The equation V = u + at can be derived by dimensional method.
(III) The equation y = A sin `omega` t cannot be derived by dimensional method
(IV) The equation `eta = (A)/(B)e^(-Bt)` can be derived with dimensional method

III is correct

II and III are correct

II, III and IV are correct

III and IV are correct

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The correct Answer is:

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(A): Physical relations involving addition and subtraction cannot be derived by dimensional analysis. (R) Numerical constants cannot be deduced by the method of dimensions.

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true and (R) is not the correct explanation of (A)

(A) is true but (R) is false

Both (A) and (R) are false

2(x-3)=10

x/3=5

5-3m=1

2k+1=1

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true and (R) is not the correct explanation of (A)

(A) is true but (R) is false

Both (A) and (R) are false