1.What is the difference between A_o and A.U.? [1] 

2.Name physical quantities whose units are electron volt and pascal? [1] 

3. When a planet X is at a distance of 824.7 million kilometers from earth its 

angular diameter is measured to be 35.7211 of arc. Calculate the diameter of ‘X’. 

[2] 

9. E, m, p and G denote energy, mass, momentum and gravitational 

constant respectively. Determine the dimensions of E² m⁵/p⁷G

[2] 

11. The density of cylindrical rod was measured by the formula:- 2

P=4m/πD² l

 The percentage in m, D and l are 1%, 1.5% and 0.5%. Calculate the % error in 

the calculated value of density?