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When pressing the bulb of a dropper with its nozzle in water, what causes water to rise in the dropper when pressure is released?
- a)Pressure of water
- b)Gravity of the earth
- c)Shape of the rubber bulb
- d)Atmospheric pressure
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
When pressing the bulb of a dropper with its nozzle in water, what cau...
Releasing the bulb creates a lower pressure inside, causing water to rise due to atmospheric pressure, demonstrating fluid dynamics.
Most Upvoted Answer
When pressing the bulb of a dropper with its nozzle in water, what cau...
Explanation:
Pressure of the Atmosphere:
- When the bulb of the dropper is pressed, the volume inside the dropper decreases, causing an increase in pressure.
- This increase in pressure pushes the water out of the dropper.
Atmospheric Pressure:
- When the pressure on the bulb is released, the volume inside the dropper increases, causing a decrease in pressure.
- Atmospheric pressure then acts on the surface of the water, forcing it to rise up the dropper nozzle.
Key Points:
- The rise of water in the dropper is due to the difference in pressure inside and outside the dropper.
- Atmospheric pressure plays a significant role in causing the water to rise in the dropper.
- The shape of the rubber bulb helps in creating pressure changes inside the dropper.
Pressure of the Atmosphere:
- When the bulb of the dropper is pressed, the volume inside the dropper decreases, causing an increase in pressure.
- This increase in pressure pushes the water out of the dropper.
Atmospheric Pressure:
- When the pressure on the bulb is released, the volume inside the dropper increases, causing a decrease in pressure.
- Atmospheric pressure then acts on the surface of the water, forcing it to rise up the dropper nozzle.
Key Points:
- The rise of water in the dropper is due to the difference in pressure inside and outside the dropper.
- Atmospheric pressure plays a significant role in causing the water to rise in the dropper.
- The shape of the rubber bulb helps in creating pressure changes inside the dropper.
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Community Answer
When pressing the bulb of a dropper with its nozzle in water, what cau...
The correct answer is option D, Atmospheric Pressure. Here is how :
When you press the bulb of a dropper, air inside the dropper is pulled out. When we release the bulb while keeping the nozzle in water, the atmospheric pressure or the pressure of the air around us pushes the water up into the dropper to fill the space left by air that was pushed out.
When you press the bulb of a dropper, air inside the dropper is pulled out. When we release the bulb while keeping the nozzle in water, the atmospheric pressure or the pressure of the air around us pushes the water up into the dropper to fill the space left by air that was pushed out.
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When pressing the bulb of a dropper with its nozzle in water, what causes water to rise in the dropper when pressure is released?a)Pressure of waterb)Gravity of the earthc)Shape of the rubber bulbd)Atmospheric pressureCorrect answer is option 'D'. Can you explain this answer?
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