Advertisements
Advertisements
Question
Who am I?
I am useful for measuring the correct temperature.
Solution
Thermometer
RELATED QUESTIONS
Why does a piece of ice when touched with a hand, appear cool? Explain.
Draw a diagram showing the temperature of various layers of water in an ice covered pond.
Distinguish between heat and temperature.
Is conduction possible in vacuum?
Why do we wear woolen clothes in winter?
State the advantages and disadvantages of mercury and alcohol as thermometric liquids.
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.
Complete the following sentence:
SI unit of temperature is ______
Who am I?
Land and water get heated due to me.
What makes the isotherms run zigzag over continental areas?
The hotness of the object is determined by its ______.
Assertion: When water is heated up to 100°C, there is no raise in temperature until all water gets converted into water vapour.
Reason: Boiling point of water is 10°C.
The temperature and heat are ______ quantities.
Find the final temperature of a copper rod. Whose area of cross-section changes from 10 m2 to 11 m2 due to heating. The copper rod is initially kept at 90K. (Coefficient of superficial expansion is 0.0021 /K)
Figure 4.4. (a–d) shows the readings on four different thermometers. Indicate which of the reading shows the normal human body temperature?
Give reasons why –
chimneys are located high up in kitchens and factories