Download App

Heat — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSHeat1 Mark
Question
Explain the following:
Why is the cooling in a refrigerator kept near the top?
✓

Answer

Inside the refrigerator, cooling takes place by convection. The freezing chamber at the top produces cool and heavy air which descends and hot air from below goes up setting convection current. Thus, cooling in a refrigerator is kept near the top.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[1 Mark Question Answer]" from Heat→Heat — all question types→PHYSICS STD 9 question papers→ICSE Board STD 9 question papers→ICSE Board question paper generator→

Similar questions

State the position of object for which the image formed by a concave mirror is of same size.
→
State whether the magnetic field lines in part (a) represent a uniform magnetic field or non-uniform magnetic field?
→
What is the purpose of an electroscope?
→
State the speed of (i) light and (ii) sound in air?
→
Name the physical quantities which are measured in the given units:
$nm$
→
How are the following derived unit related to the fundamental unit?
Newton
→
A body radiates out 300 calories of heat energy. How much heat energy is radiated out by the body in joules?
→
What is a neutral point?
→
Name the instrument which has the least count
0.1 mm
→
The lighting and the thunder are produced simultaneously, but the sound of the thunder is heard a few seconds after the lightning is seen. Why?
→