Priyanka B Solutions for Chapter: Gravitation, Exercise 10: Multiple Choice Questions (MCQs)

From measuring cylinders with different least counts are shown in Fig. $\mathrm{A}, \mathrm{B}, \mathrm{C}$and $\mathrm{D}$. The most suitable cylinder for determining the volume of a cube side nearly $1 \mathrm{cm}$ is.

While determining the density of a copper piece using a spring balance and a measuring cylinder, Nitin carried out the following procedure :

(i) Noted the water level in the measuring cylinder without the copper piece.

(ii) Immersed the copper piece in the water.

(iii) Noted the water level in the measuring cylinder with the copper piece inside it.

(iv) Removed the copper piece from the water and immediately weighed it using a spring balance. 

The wrong step in the produce is :

To observe and compare the pressure exerted by solid cuboid in its upright position, student $\mathrm{A}$ placed the cuboid gently on the loose sand while $\mathrm{B}$ placed it on the surface of table top. Who will observe the exerted pressure by cuboid easily?

When a body sinks in a liquid the weight of the body is:

Four measuring cylinders with different least counts are shown in $\mathrm{Fig}.$ $\mathrm{A}, \mathrm{B}, \mathrm{C}$ and $\mathrm{D}$. The most suitable cylinder for determining the volume of a cube of side nearly $1 \mathrm{cm}$ is :

When a body is immersed in a liquid, the buoyant force acts on the body :

The readings of the spring balance will be

The same body is immersed in two liquids $\mathrm{A}$ and $\mathrm{B}$ in succession. The extent to which the body sinks in liquid $\mathrm{B}$ is less than in liquid $\mathrm{A}$. What are the conclusions that could be derived from such an observation?