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Aug 7, 2013

#### Distinguish between  clinical and laboratory thermometers



1)the temperature range of clinical thermometers is from 35 to 42 degree centigrade while that of laboratory thermometer is from -10 to 110 degree centigrade. 2)clinical thermometer is used to measure the temp...

Oct 2, 2015

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



The conversion formula for a temperature that is expressed on the Celsius (C) scale to its Fahrenheit (F) representation is...

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.

Apr 10, 2014

#### how many types of thermometer we have



There are two types of thermometers

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 ...

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.

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...

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

Aug 12, 2015

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



Air is trapped in the space between two thin blankets. Since air is an insulator of heat, it prevents the escape of body heat. That is why two thin blankets are usually warmer than one thick blanket.