Which one of the following statements is correct?
Any energy transfer that does not involve temperature difference in some way is not heat
Any energy transfer always requires a temperature difference
On heating the length and volume of the object remain exactly the same
Whenever there is a temperature difference, heat is the only way of energy transfer
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy