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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ९

Assertion (A): 0 °C = 273.16 K. For our convenience we take it as 273 K after rounding off the decimal. Reason (R): To convert a temperature on the Celsius scale we have to add 273 to

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प्रश्न

Assertion (A): 0 °C = 273.16 K. For our convenience we take it as 273 K after rounding off the decimal.

Reason (R): To convert a temperature on the Celsius scale we have to add 273 to the given temperature.

विकल्प

  • Both A and R are true but R is not the correct reason.

  • Both A and R are true and R is the correct reason.

  • A is true but R is false.

  • A is false but R is true.

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उत्तर

Both A and R are true and R is the correct reason.

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अध्याय 1: Measurement - Exercise [पृष्ठ १२]

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सामाचीर कलवी Science [English] Class 9 TN Board
अध्याय 1 Measurement
Exercise | Q V. 2. | पृष्ठ १२

संबंधित प्रश्न

The temperature of a body rises by 1°C. What is the corresponding rise on the (a) Fahrenheit scale (b) Kelvin scale?


Convert – 40°F to the Celsius scale.


Name the one common unit of temperature. Write their symbols also.


A deep pond of water has its top layer frozen during winter. State the expected temperature of water layer (i) Just in contact with ice and (ii) At the bottom of pond. 


Explain the following

Water pipes in colder countries often burst in winter.


Define heat energy on a conventional basis.


Is conduction possible in vacuum?


How can a glass stopper jammed in the neck of a bottle be removed?


Name two liquid thermometers that are commonly used.

State the temperature of the ice point and steam point on the Fahrenheit scale.

What is the main difference between good and bad conductors of heat?

Name the substance which is most non-conducting.

The following figure shows a container in which a lighted candle has been kept. The container has two openings, p, and Q. Which way the smoke from an external source placed near P moves when it reaches P and leaves from Q. Give a reason for your answer.


Where am I?

The isotherm 0°C runs in my surroundings.


Who am I?

Land and water get heated due to me.


Temperature of Srinagar (J&K) is -4°C and in Kodaikanal is 3°C which of them has greater temperature? What is the difference between the temperatures of these two places?


Higher Order Thinking question

Go to a veterinary doctor (a doctor who treats animals). Discuss and find out the normal temperature of domestic animals and birds.


The Kelvin is the basic unit of ______.


Which factor determines the direction of flow of heat from one body to another?


Explain the following effects of heat.

Change in temperature


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