Advertisements
Advertisements
प्रश्न
Give a scientific reason for the following:
On a hot sunny day, it is advisable to wear light coloured clothes.
Advertisements
उत्तर
People wear light colured clothes in winter because these clothes reflect most of the sun's radiations and absorb only a little of them. Therefore, they keep themselves cool.
APPEARS IN
संबंधित प्रश्न
Explain the construction of a calorimeter. Draw the necessary figure.
Explain the following
Water pipes in colder countries often burst in winter.
What is the normal temperature of human body?
Why do we wear woolen clothes in winter?
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 ______
The following figure shows a copper washer. Explain, giving reasons, whether the following characteristics of the washer increase, decrease, or remain the same when it is heated.

(a) Internal diameter
(b) Volume
(c) Mass
(d) Density
(e) External diameter
Why do people prefer wearing white clothes during summer?
The temperature and heat are ______ quantities.
Heat energy is always transferred from ______ to ______ temperatures.
