Home
Class 12
PHYSICS
Statement-1 : When an air bubble moves u...

Statement-1 : When an air bubble moves up from the bottom of a lake, its acceleration decreases and becomes zero.
And
Statement-2 : When an air bubble moves up from the bottom of a lake, its velocity increases and become constant.

A

it's velocity is always constant ans

B

its velocity is always constant and is non - zero

C

its acceleration decreases and becoms zero

D

No viscous force acts if it moves up slowly

Text Solution

Verified by Experts

The different forces on air bubble are weight , buoyant force and viscous
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion. A bubble comes from the bottom of a lake to the top. Reason. Its radius increases.

An air bubble rises from the bottom of a lake of large depth. The rising speed of air bubble will

When an air bubble rise from the bottom of a deep lake to a point just below the water surface, the pressure of air inside the bubble

As an air bubble rises from the bottom of a lake to the surface, its volume is doubled. Find the depth of the lake. Take atmospheric pressure = 76 cm of Hg.

A air bubble rises from bottom of a lake to surface. If its radius increases by 200% and atmospheric pressure is equal to water coloumn of height H, then depth of lake is

When a large bubble rises from the bottom of a lake to the surface, its radius doubles, The atmospheric pressure is equal to that of a column of water of height H. The depth of the lake is

Statement-1 : When two soap bubbles of unequal radii are connected by a tube, the smaller bubble decreases in size. Statement-2 : In floating, weight of the floating body is equal to the weight of displaced fluid. Statement-3 : When ice converts into water its volume decreases.

At constant temperature if an air bubble present at the bottom of a lake at 8 atm pressure and with radius 0.1 cm rises to the surface then its new radius will become

When an air bubble of radius 'r' rises from the bottom to the surface of a lake, its radius becomes 5r//4 (the pressure of the atmosphere is equal to the 10 m height of water column). If the temperature is constant and the surface tension is neglected, the depth of the lake is

Statement- 1 : When an electric fan is switched on in a closed room, the air of the room is cooled. Statement- 2 : When fan is switched on, the speed of the air molecules will increase.