00. Physical Quantities
Units and Measurements

139400 A dimensionless physical quantity

1 may have a unit
2 always has a unit
3 never has a unit
4 does not exist
Units and Measurements

139403 How many astronomical units are there in 1 metre

1 \(6.68 \times 10^{12} \mathrm{Au}\)
2 \(6.68 \times 10^{-10} \mathrm{Au}\)
3 \(6.68 \times 10^{10} \mathrm{Au}\)
4 \(6.68 \times 10^{-12} \mathrm{Au}\)
Units and Measurements

139418 Density of liquid in CGS system is \(0.625 \mathrm{~g} / \mathrm{cm}^{3}\). What is its magnitude in SI system

1 0.625
2 0.0625
3 0.00625
4 625
Units and Measurements

139413 The prefix atto means

1 \(10^{-21}\)
2 \(10^{-15}\)
3 \(10^{-18}\)
4 \(10^{-12}\)
Units and Measurements

139400 A dimensionless physical quantity

1 may have a unit
2 always has a unit
3 never has a unit
4 does not exist
Units and Measurements

139403 How many astronomical units are there in 1 metre

1 \(6.68 \times 10^{12} \mathrm{Au}\)
2 \(6.68 \times 10^{-10} \mathrm{Au}\)
3 \(6.68 \times 10^{10} \mathrm{Au}\)
4 \(6.68 \times 10^{-12} \mathrm{Au}\)
Units and Measurements

139418 Density of liquid in CGS system is \(0.625 \mathrm{~g} / \mathrm{cm}^{3}\). What is its magnitude in SI system

1 0.625
2 0.0625
3 0.00625
4 625
Units and Measurements

139413 The prefix atto means

1 \(10^{-21}\)
2 \(10^{-15}\)
3 \(10^{-18}\)
4 \(10^{-12}\)
Units and Measurements

139400 A dimensionless physical quantity

1 may have a unit
2 always has a unit
3 never has a unit
4 does not exist
Units and Measurements

139403 How many astronomical units are there in 1 metre

1 \(6.68 \times 10^{12} \mathrm{Au}\)
2 \(6.68 \times 10^{-10} \mathrm{Au}\)
3 \(6.68 \times 10^{10} \mathrm{Au}\)
4 \(6.68 \times 10^{-12} \mathrm{Au}\)
Units and Measurements

139418 Density of liquid in CGS system is \(0.625 \mathrm{~g} / \mathrm{cm}^{3}\). What is its magnitude in SI system

1 0.625
2 0.0625
3 0.00625
4 625
Units and Measurements

139413 The prefix atto means

1 \(10^{-21}\)
2 \(10^{-15}\)
3 \(10^{-18}\)
4 \(10^{-12}\)
Units and Measurements

139400 A dimensionless physical quantity

1 may have a unit
2 always has a unit
3 never has a unit
4 does not exist
Units and Measurements

139403 How many astronomical units are there in 1 metre

1 \(6.68 \times 10^{12} \mathrm{Au}\)
2 \(6.68 \times 10^{-10} \mathrm{Au}\)
3 \(6.68 \times 10^{10} \mathrm{Au}\)
4 \(6.68 \times 10^{-12} \mathrm{Au}\)
Units and Measurements

139418 Density of liquid in CGS system is \(0.625 \mathrm{~g} / \mathrm{cm}^{3}\). What is its magnitude in SI system

1 0.625
2 0.0625
3 0.00625
4 625
Units and Measurements

139413 The prefix atto means

1 \(10^{-21}\)
2 \(10^{-15}\)
3 \(10^{-18}\)
4 \(10^{-12}\)