Exercise 4.2
Subject Experts Science Solutions for Exercise 4.2
Simple step-by-step solutions to Exercise 4.2 questions of Heat from Exam Guru Science. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from Exercise 4.2 with Hints & Solutions
While constructing a house in coastal area, in which direction should the windows preferably face and why?
A circular metal loop is heated at a point O.
In which direction would heat flow in the loop?
A circular metal loop is heated at a point O.
In which order the pins at points P, Q and R fixed with the help of wax fall if points O, P, Q and R are equidistant from each other?
Observe the picture as given in the following figure. Water is being boiled in a pan of wide base.
Which position P or T will feel warmer?
Observe the picture as given in the following figure. Water is being boiled in a pan of wide base.
Fill up the boxes P, T to indicate the mode of flow of heat to the hand.
Look at the figure below.
The length of wire PQ in case of A is equal to the diameter of the semi circle formed by air CDE in case B. One pin is attached to each wire with the help of wax. Which pin will fall first? Explain.
Draw the diagram of blowing of sea–breeze. When do they take place?
Draw the diagram:
Blowing of land breeze.
When do they take place?
