Advertisements
Advertisements
प्रश्न
Select the correct alternative
Which of the statement is correct
विकल्प
Iron rims are cooled before they are placed on cartwheels
A glass stopper gets tight on warming the neck of the bottle
Telephone wires sag in winter, but become tight in summer
A little space is left between two rails on a railway track
उत्तर
A little space is left between two rails on a railway track
APPEARS IN
संबंधित प्रश्न
Write true or false for a given statement.
A mercury thermometer makes use of the property of the expansion of liquids on heating.
Write true or false for a given statement.
Land and sea breezes are convection currents of cold and warm air.
Fill in the blank
Black and dull surfaces are ______ of heat.
A glass stopper stuck in the neck of a bottle can be removed by pouring hot water on the neck of the bottle. Explain why ?
Name a solid which is a good conductor of heat.
Why do we use cooking utensils made up of copper.
Why is a tea kettle provided with an ebonite handle ?
Why are quilts filled with fluffy cotton?
What are the land and sea breezes? Explain their formation.
Why do we prefer to wear white or light coloured clothes in summer and black or dark coloured clothes in winter ?
