Match the following:

Assertion (A): Magnetic tape can be accessed only sequentially.

Reason (R): Magnetic tape consists of magnetised spots or tracks.

1. An object is a self contained element of a computer program which represents a related group of interests.
2. Each object has a specific role in a program.
3. All objects can work with other objects in defined ways.
4. Objects are also called instances

1. The sign of a floating point number depends on the sign of mantissa only.
2. If the absolute value of a number is less than 1, the sign of exponent is zero or positive.
3. With sign bit of mantissa as 0, increasing the exponent from a positive to a more positive value gives a larger floating point number.

1. Acceptor level is formed very close to the conduction band.
2. The effective mass of the free electron is same as that of a hole.
3. The magnitude of the charge of a free electron is same as that of a hole.
4. Addition of donor impurities adds holes to the semiconductor.

1. In a pulsed radar, the transmitted pulses are of high frequency
2. In a pulsed radar, the transmitted pulses are of high power
3. In a pulsed radar, the transmitted pulses are of brief duration
4. In a pulsed radar, the transmitted pulses are of square wave shape.

Assertion (A): F(s) is valid throughout s plane except at poles of F(s).

Reason (R): £[f₁(t) + f₂(t)] = £[f₁(t)] + £[f₂(t)]

1. Registers are made of edge-triggered FFs, whereas latches are made from level-triggered FFs.
2. Registers are temporary storage devices whereas latches are not.
3. A latch employs cross-coupled feedback connections.
4. A register stores a binary word whereas a latch does not.

Match the following:

Assertion (A): A hot wire ammeter has a cramped scale.

Reason (R): The heat is proportional to square of current.