Question 2 :
The number of significant figures in a number "{tex} 1700.00200 ^ { \circ } {/tex}" is

Question 5 :
The quantity having the same units in all systems of units is

Question 8 :
Which of the following statements is/are correct?<br> I. Strong nuclear force binds protons and neutrons in a nucleus. <br>II. In twentieth century, silicon chip triggered a revolutionary changes in technology of computer system.<br> III. The fossil fuels of the planet are dwindling fast and there is urgent need to discover new source of energy.