Density

Q. The density of a material in $CGS$ system of units is $4g/c{m}^3$. In a system of units in which unit of length is $10cm$ and unit of mass is $100g$, the value of density of material will be :-

1. $0.04$
2. $0.4$
3. $40$
4. $400$

Q.

If volume of an utensil is $200c{m}^3$, then find its weight, given, density of the material it is made of is $7.56g/c{m}^3$

1. 1512 grams

2. 2, 480 grams

3. 1, 120 grams

4. 4, 388 grams

Q. What is the volume of the cuboid shown below? All dimensions are in metres.

1. $40m^3$
2. $60m^3$
3. $80m^3$
4. $100m^3$

Q.

81 $\times$ g = -81 Find the value of g.

1. g = 4

2. g = 1

3. g = -1

4. g = 2

Q. Taps $A$ and $B$ can fill in a tank in $12$ and $15$ min respectively. If both are opened and $A$ is closed after $3$ min how long will it take for $B$ to fill in the tank ?

1. $8$ min $15$ s
2. $8$ min $5$ s
3. $7$ min $45$ s
4. $8$ min $45$ s

Q. Weight of $0.5$ moles of chlorine is:

1. $35.5gm$
2. $17.75gm$
3. $70gm$
4. $28.5gm$

Q. The dimensions of a cuboid are $5$cm, $3$cm and $2$cm. Draw three different isometric sketches of this cuboid.