Column I	Column II
(i) Curie	(A) MLT–2
(ii) Light year	(B) M
(iii) Dielectric strength	(C) Dimensionless
(iv) Atomic weight	(D) T
(v) Decibel	(E) ML2T–2
	(F) MT–3
	(G) T–1
	(H) L
	(I) MLT–3I–1
	(J) LT–1

Choose the correct match 

1. (i) G, (ii) H, (iii) I, (iv) B, (v) C

2. (i) D, (ii) H, (iii) I, (iv) B, (v) G

3. (i) G, (ii) H, (iii) I, (iv) B, (v) G

4. None of the above

A wire has a mass of \((0.3\pm0.003)\) grams, a radius of \((0.5\pm 0.005)\) mm, and a length of \((0.6\pm0.006)\) cm. The maximum percentage error in the measurement of its density will be:
1. \(1\)
2. \(2\)
3. \(3\)
4. \(4\)

If \(97.52\) is divided by \(2.54\), the correct result in terms of significant figures is:

Assertion : ‘Light year’ and ‘Wavelength’ both measure distance.

Reason : Both have dimensions of time.

Assertion : Light year and year, both measure time.

Reason : Because light year is the time that light takes to reach the earth from the sun.

Assertion : Force cannot be added to pressure.

Reason : Because their dimensions are different.

Assertion : Linear mass density has the dimensions of $\left[M^1{L}^{-1}{T}^o\right]$.

Reason : Because density is always mass per unit volume.

Assertion : Rate of flow of a liquid is defined as volume of liquid flowing per second.

Reason : The dimensions of rate of flow are $\left[M^0{L}^1{T}^{-1}\right]$.

Assertion: Units of Rydberg constant R are m^-1

Reason: It follows from Bohr’s formula $\overline{v}=R\left(\frac{1}{n_1^2}-\frac{1}{n_2^2}\right)$, where the symbols have their usual meaning.

Assertion : Parallex method cannot be used for measuring distances of stars more than 100 light years away.

Reason : Because parallex angle reduces so much that it cannot be measured accurately.