Advertisements
Advertisements
प्रश्न
Where am I?
The mean annual temperature is 25°C around me.
उत्तर
Torrid zone
संबंधित प्रश्न
What is meant by the term temperature.
State the temperature of steam point on the Celsius scale.
Who is telling the truth?
The temperature of a substance is measured in joules.
What is heat ? Write its S.I. unit.
Name the S.I. unit of heat and how is it related to the unit calorie?
Name two substances which expand on heating.
State the volume changes that you will observe when a given mass of water is heated from 0°C to 10°C. Sketch a temperature-volume graph to show the behaviour.
Distinguish between heat and temperature.
A small gap is left between two iron rails of the railway track. Why?
Explain the following:
Water is heated generally from below.
A spiral cut from a thick chart paper is pivoted at 0 and is held slightly above a burning candle You will notice that the spiral starts moving. Explain.
Give a scientific reason for the following:
On a hot sunny day, it is advisable to wear light coloured clothes.
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.
When a window is accidentally left open on a winter night, will you feel uncomfortable because the cold is getting in, or because the heat is escaping from the room?
If a substance is heated or cooled, the change in mass of that substance is
