Questions

___________ states that internal energy is a function of state and the increase in internal energy is equal to the sum of the heat supplied to system and work done by the system.

Two vectors are said to be equal if

In science a push or pull of an object is called ________.

The slope of a Distance­Time graph shows ___________.

Urdu is the official language of _________.

The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 127.5 V ?

Convex mirror is generally used in _____.

In the following question, out of the four alternatives, choose the alternative which best expresses the meaning of the idiom/Phrase.

Ruffle somebody's feather