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Sagar kumar

Aug 7, 2013

#### Distinguish between  clinical and laboratory thermometers



Hsbdhsjsbdhbsshsbwbsjsne

Oct 2, 2015

#### What is relation between Celsius and Fahrenheit?



Shailendra kumar gupta

Aug 20, 2013

#### What is the fastest and slowest mode of heat transfer ?



Radiation is considered the fastest mode of heat transfer as it travells as fast as light. Conduction is considered the slowest mode of heat transfer as it moves from particle to particle.

SnehaRoyChowdhury

Jul 14, 2015

#### Why mercury is used as a thermometric fluid ? Sol: There are many reasons for using mercury as a thermometric liquid, here are listed a few: Mercury has high melting and boiling points making it a liquid over a broad range of temperature. Since it is a metal, it has a stable coefficient of expansion hence it expands uniformly and noticeably for a slight change of temperature. Mercury is a non sticky viscous metal and hence it makes a clear meniscus, helpful in readings. Mercury will not expand when it solidifies hence it doesn’t break the glass tube of the thermometer.



1. It expands uniformly when heated.

Kopal

Mar 11, 2014

#### Q: What is sea breeze? Q:  It is land breeze?



What is sea breeze?
During the day, the land gets heated faster than the water. The air over the land becomes hotter and rises up. The cooler air from the sea rushes in towards the land ...

Anant

Apr 10, 2014

#### how many types of thermometer we have



There are two types of thermometers

Joanne James

Jul 3, 2015

#### Why are ventilators in house provided at the top of walls?



Ventilators are provided in the rooms at the top of the roofs, just below the roofs because if the air inside the room gets hot thehot  air rises up and flow through these ventilators and thus cool air rem...

Deeksha

May 18, 2014

#### In places of hot climate it is advised that outer wall of house should be painted white?Exlain.



In places of hot climate the outer walls of the house are painted white as we know that the white colour reflects the rays of the sun where as darker...

CHRIS ---

Aug 12, 2015

#### Why are two thin blankets usually warmer than one thick blanket ?



If two thin blankets are covered on a body the air may get trapped in the space between two thin blankets. As we know air is a bad conductor of heat. It does not transfer heat from...

CHRIS ---

Aug 23, 2015

#### One litre of water at 30 degrees celsius is mixed with one litre of water at 50 degrees celsius. The temperature of the mixture will be a. CONDUCTION b. MORE THAN 50 DEGREES CELSIUS BUT LESS THAN 80 DEGREES CELSIUS c. 20 DEGREES CELSIUS d. BETWEEN 30 DEGREES CELSIUS AND 50 DEGREES CELSIUS



d. BETWEEN 30 DEGREES CELSIUS AND 50 DEGREES CELSIUS

Sagar kumar

Aug 7, 2013

#### Distinguish between  clinical and laboratory thermometers



Hsbdhsjsbdhbsshsbwbsjsne

Oct 2, 2015

#### What is relation between Celsius and Fahrenheit?



Shailendra kumar gupta

Aug 20, 2013

#### What is the fastest and slowest mode of heat transfer ?



Radiation is considered the fastest mode of heat transfer as it travells as fast as light. Conduction is considered the slowest mode of heat transfer as it moves from particle to particle.

SnehaRoyChowdhury

Jul 14, 2015

#### Why mercury is used as a thermometric fluid ? Sol: There are many reasons for using mercury as a thermometric liquid, here are listed a few: Mercury has high melting and boiling points making it a liquid over a broad range of temperature. Since it is a metal, it has a stable coefficient of expansion hence it expands uniformly and noticeably for a slight change of temperature. Mercury is a non sticky viscous metal and hence it makes a clear meniscus, helpful in readings. Mercury will not expand when it solidifies hence it doesn’t break the glass tube of the thermometer.



1. It expands uniformly when heated.

Kopal

Mar 11, 2014

#### Q: What is sea breeze? Q:  It is land breeze?



What is sea breeze?
During the day, the land gets heated faster than the water. The air over the land becomes hotter and rises up. The cooler air from the sea rushes in towards the land ...

Anant

Apr 10, 2014

#### how many types of thermometer we have



There are two types of thermometers

Joanne James

Jul 3, 2015

#### Why are ventilators in house provided at the top of walls?



Ventilators are provided in the rooms at the top of the roofs, just below the roofs because if the air inside the room gets hot thehot  air rises up and flow through these ventilators and thus cool air rem...

Deeksha

May 18, 2014

#### In places of hot climate it is advised that outer wall of house should be painted white?Exlain.



In places of hot climate the outer walls of the house are painted white as we know that the white colour reflects the rays of the sun where as darker...

CHRIS ---

Aug 12, 2015

#### Why are two thin blankets usually warmer than one thick blanket ?



If two thin blankets are covered on a body the air may get trapped in the space between two thin blankets. As we know air is a bad conductor of heat. It does not transfer heat from...

CHRIS ---

Aug 23, 2015

#### One litre of water at 30 degrees celsius is mixed with one litre of water at 50 degrees celsius. The temperature of the mixture will be a. CONDUCTION b. MORE THAN 50 DEGREES CELSIUS BUT LESS THAN 80 DEGREES CELSIUS c. 20 DEGREES CELSIUS d. BETWEEN 30 DEGREES CELSIUS AND 50 DEGREES CELSIUS



d. BETWEEN 30 DEGREES CELSIUS AND 50 DEGREES CELSIUS

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