The number of significant figures in 3400 is :

নিচের কোনটি দুরত্বের একক নয়?  

$\left ( P + \frac{a}{V^{2}} \right ) \left ( V - b \right ) = R T$   সমীকরণটিতে a এর মাত্রা কত?

The dimensional formula for impulse is same as the dimensional

formula for

Consider the following pairs of quantities:

1. Young's modulus; pressure

2. Torque; energy

3. Linear momentum; work

4. Solar day; light year

In which cases are the dimensions, within a pair, same?