Question Discussion & Solution

Temporal cohesion:

When a module contains functions that are related by the fact that these functions are executed in the same time span, then the module is said to possess temporal cohesion.

Example of Temporal cohesion,

The correct answer is option 4) i.e. ∞

CONCEPT:

• ​The time period of a pendulum is given by the equation:

​\(\Rightarrow T = 2\pi\sqrt{\frac {L}{g}}\)

Where L is the length of the string of pendulum and g is the acceleration due to gravity.

EXPLANATION:

• At a height of 900 km from the earth's surface gravity is absent.

Therefore, g = 0.

Substituting g = 0,

\(\Rightarrow T = 2\pi\sqrt{\frac {L}{0}} = ∞\)

Thus, the time period of the pendulum at a distance of 900 km from the Earth will be infinite.

Thus, ‘SEDATE’ can be coded as:

The correct answer is Concave lens.

Key Points

• To treat the eye disease known as myopia or nearsightedness we use the Concave Lens.
• A concave lens is a category of lens that deviates a straight light beam coming from the origin to a diminished, upright, virtual image.
• It can construct both real and virtual images.
• The convex lens is a lens that tends to meet at a point of rays of light that convey parallel to its principal axis which is comparatively thick across the middle and thin at the lower and upper edges.
• A convex lens is used in cameras, correction of Hyperopia, etc.
• Bifocal lenses hold two different prescriptions, an upper part to allow for distance vision and an additional power on the bottom part of the lens to help in close-up focus.
• A bifocal lens is used in people suffering from presbyopia, myopia, hyperopia, and astigmatism.
• The result is eyesight lucidity at both distance and near with one pair of glasses.
• A Compound lens is simple lenses made on a general axis usually in close proximity and often cemented with each other.

Additional Information

The correct answer is option 1.

Concept:

When a process requests for the resource that is been held another process that needs another resource to continue, but is been held by the first process, then it is called a deadlock.

There are 4 conditions necessary for the occurrence of a deadlock.

Mutual Exclusion:

Only one process can hold a resource at a time. In other words, if a process P1 is utilizing a resource R at a specific moment in time, another process P2 cannot hold or utilize the same resource R at that same moment. Process P2 can make a request for that resource R, but it cannot use it at the same time as process P1.

Hold and Wait:

A process can hold several resources at the same time while also requesting resources from another process. A process P1, for example, can have two resources R1 and R2 while also requesting a resource R3 that is currently owned by process P2.

No preemption:

A resource cannot be forcibly removed from a process by another process. If a process P1 is using a resource R, for example, another process P2 cannot take that resource by force. If that's the case, what's the point of using different scheduling algorithms?  Process P2 can make a request for the resource R and then wait for process P1 to liberate it.

Circular Wait:

The first process is waiting for the resource held by the second process, and the second process is waiting for the resource held by the third process, and so on. Finally, the last process is waiting for the first process's resource. As a result, each process is waiting for the other to release the resource, with no one releasing their own. Everyone is waiting for the resource to arrive. This is referred to as a circular wait.

Hence the correct answer is Mutual Exclusion, Hold and Wait, No Preemption, and Circular Wait.