Questions

Here we are initalising the function pointer p to the address of the function fun(). But during this initialisation the function has not been defined. Hence an error.

To eliminate this error add the prototype of the fun() before declaration of p, as shown below:

extern int fun();    or simply  int fun();

Strait of Messina seperates Italy and Sicily , while Strait of Bonifacio is located between Corsica  and Sardinia and Strait of Otranto  is found between Italy and Albania.

Execution Unit receives program instruction codes and data from BIU, executes these instructions and store the result in general registers.

Program counter holds the address of either the first byte of the next instruction to be fetched for exectuion or the address of the next byte of a multi byte instruction, which has not beeb completely fetched. in both the cases it gets increnented automatically one by one as the instruction bytes get fetched. Also Program register keeps the address of the next instruction.

PSLV - C37 vehicle was used for ISRO's successfully launch of 104 satellites.

If an object moves with some velocity that means the magnitude and direction of the object changes i.e, the object moves with some acceleration. Hence, if the object moves with constant velocity, no change in direction and magnitude of speed i.e, no acceleration = 0 acceleration.