A tall measuring jar contains ethyl alcohol of density $0.8 g m / c m^{3}$ . An iron ball is dropped into it and the level rises by $20 c m^{3}$ . The buoyant force acting on the ball is : (Take acceleration due to gravity to be $10 m s^{- 2}$ )

0.2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.25

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.16

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

1.6

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $0.16$ N
As the level rises by $20 c m^{3}$
i.e., Volume of alcohol displaced by the iron ball $= 20 c m^{3} = 20 \times 10^{- 6} m^{3}$
Density in $k g / m^{3}$ = $0.8 \times \frac{10^{- 3}}{10^{- 6}} = 800$
So, the force acting on the ball in upward direction $= V \times ρ \times g$
$= 20 \times 10^{- 6} \times 800 \times 10$
$= 0.16 N$

Suggest Corrections

Similar questions

A beaker is filled with water to its brim. A ball of mass 1 kg is slowly dropped into it. If water weighing 5 N falls out of the beaker, the buoyant force experienced by the ball is ___.

A beaker is filled with water to its brim. A child while playing drops his ball of mass 1 kg into it and eventually ends up with wetting himself with water. He weighs the water fallen on him and found it to be 1 N. Find the buoyant force experienced by the ball. (Assume that the ball drops slowly)

A block of mass $10 k g$ is held against a vertical wall by applying a horizontal force of $50 N$ .The coefficient of friction is 0.2 between the block and the wall. What is the frictional force acting? (Take acceleration due to gravity, $g = 10 m / s^{2}$ )

A beaker is filled with water to its brim. A child while playing drops his ball of mass 1 kg into it and eventually ends up wetting himself with water. He weighs the water fallen on him and found it to be 1 N. Assuming that the ball is dropped slowly and all the spilled-over water fell on the child, find the buoyant force acting on the ball.

A cube of side $10 c m$ completely immersed in water experiences a buoyant force of_____(Take Density of water $ρ$ = $1000 k g / m^{3}$ , Acceleration due to gravity $g = 10 m / s^{2}$ )

Join BYJU'S Learning Program

A tall measuring jar contains ethyl alcohol of density 0.8 gm/cm3. An iron ball is dropped into it and the level rises by 20 cm3. The buoyant force acting on the ball is : (Take acceleration due to gravity to be 10 ms−2)

The correct option is A 0.16 NAs the level rises by 20 cm3i.e., Volume of alcohol displaced by the iron ball=20 cm3=20×10−6 m3Density in kg/m3 = 0.8×10−310−6=800So, the force acting on the ball in upward direction=V×ρ×g=20×10−6×800×10 =0.16 N

A tall measuring jar contains ethyl alcohol of density $0.8 g m / c m^{3}$ . An iron ball is dropped into it and the level rises by $20 c m^{3}$ . The buoyant force acting on the ball is : (Take acceleration due to gravity to be $10 m s^{- 2}$ )