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When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water rises up in the dropper. The rise of water in the dropper is due to
- a)pressure of water
- b)atmospheric pressure
- c)gravity
- d)shape of rubber bulb
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
When we press the bulb of a dropper with its nozzle kept in water, air...
hi!
here is your answer
i hope it helps
when we press the top of the dropper, the air inside the soft balloon like rubber structure on top is forced to leave...when we release it, the water rushes to take its place while the air also fills in the rubber structure creating a suction
pleased to hep!
i hope this help you in understanding!
Aashna
student
class 8
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Community Answer
When we press the bulb of a dropper with its nozzle kept in water, air...
Explanation:
When the bulb of a dropper is pressed, the air inside the dropper is compressed. This increased pressure forces the air out of the dropper through the nozzle, resulting in the formation of bubbles in the water.
Pressure of Water:
The pressure of water alone does not cause the rise of water in the dropper. In fact, the pressure of water is equal in all directions and cancels out each other, resulting in no net force to push the water up.
Gravity:
Gravity is the force that pulls objects downwards. While gravity does act on the water in the dropper, it cannot explain the rise of water in the dropper when the pressure on the bulb is released.
Shape of Rubber Bulb:
The shape of the rubber bulb does play a role in the functioning of the dropper, but it is not the main reason for the rise of water. The bulb is designed to be flexible so that it can be compressed and create pressure to expel the air. However, the release of pressure on the bulb alone would not cause the water to rise.
Atmospheric Pressure:
The main reason for the rise of water in the dropper is the atmospheric pressure. Atmospheric pressure is the pressure exerted by the air in the surrounding atmosphere. When the bulb is pressed, the air inside the dropper is pushed out, creating a region of low pressure inside the dropper. As a result, the higher atmospheric pressure outside the dropper pushes the water up into the dropper to fill the low-pressure space.
When the pressure on the bulb is released, the air inside the dropper is no longer compressed, and the pressure inside the dropper becomes equal to the atmospheric pressure. At this point, the atmospheric pressure acting on the water outside the dropper is greater than the pressure inside the dropper, causing the water to rise up into the dropper until the pressures are balanced.
In conclusion, the rise of water in the dropper is due to the difference in pressure between the atmospheric pressure outside the dropper and the pressure inside the dropper when the bulb is pressed and released. This phenomenon is a result of the principles of fluid mechanics and the behavior of gases under pressure.
When the bulb of a dropper is pressed, the air inside the dropper is compressed. This increased pressure forces the air out of the dropper through the nozzle, resulting in the formation of bubbles in the water.
Pressure of Water:
The pressure of water alone does not cause the rise of water in the dropper. In fact, the pressure of water is equal in all directions and cancels out each other, resulting in no net force to push the water up.
Gravity:
Gravity is the force that pulls objects downwards. While gravity does act on the water in the dropper, it cannot explain the rise of water in the dropper when the pressure on the bulb is released.
Shape of Rubber Bulb:
The shape of the rubber bulb does play a role in the functioning of the dropper, but it is not the main reason for the rise of water. The bulb is designed to be flexible so that it can be compressed and create pressure to expel the air. However, the release of pressure on the bulb alone would not cause the water to rise.
Atmospheric Pressure:
The main reason for the rise of water in the dropper is the atmospheric pressure. Atmospheric pressure is the pressure exerted by the air in the surrounding atmosphere. When the bulb is pressed, the air inside the dropper is pushed out, creating a region of low pressure inside the dropper. As a result, the higher atmospheric pressure outside the dropper pushes the water up into the dropper to fill the low-pressure space.
When the pressure on the bulb is released, the air inside the dropper is no longer compressed, and the pressure inside the dropper becomes equal to the atmospheric pressure. At this point, the atmospheric pressure acting on the water outside the dropper is greater than the pressure inside the dropper, causing the water to rise up into the dropper until the pressures are balanced.
In conclusion, the rise of water in the dropper is due to the difference in pressure between the atmospheric pressure outside the dropper and the pressure inside the dropper when the bulb is pressed and released. This phenomenon is a result of the principles of fluid mechanics and the behavior of gases under pressure.
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When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water rises up in the dropper. The rise of water in the dropper is due toa)pressure of waterb)atmospheric pressurec)gravityd)shape of rubber bulbCorrect answer is option 'B'. Can you explain this answer?
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When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water rises up in the dropper. The rise of water in the dropper is due toa)pressure of waterb)atmospheric pressurec)gravityd)shape of rubber bulbCorrect answer is option 'B'. Can you explain this answer? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water rises up in the dropper. The rise of water in the dropper is due toa)pressure of waterb)atmospheric pressurec)gravityd)shape of rubber bulbCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water rises up in the dropper. The rise of water in the dropper is due toa)pressure of waterb)atmospheric pressurec)gravityd)shape of rubber bulbCorrect answer is option 'B'. Can you explain this answer?.
When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water rises up in the dropper. The rise of water in the dropper is due toa)pressure of waterb)atmospheric pressurec)gravityd)shape of rubber bulbCorrect answer is option 'B'. Can you explain this answer? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water rises up in the dropper. The rise of water in the dropper is due toa)pressure of waterb)atmospheric pressurec)gravityd)shape of rubber bulbCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water rises up in the dropper. The rise of water in the dropper is due toa)pressure of waterb)atmospheric pressurec)gravityd)shape of rubber bulbCorrect answer is option 'B'. Can you explain this answer?.
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