Questions

Q:

In spherical polar coordinates (l, q, a), q denotesthe polar angle around z-axis and a denotes the azimuthal angle raised from x-axis . Then the y-component of P is given by

A) Psinq sina B) Psinq cosa
C) Pcosq sina D) Pcosq cosa
 
Answer & Explanation Answer: A) Psinq sina

Explanation:

The Cartesian Coordinates can be retrieved from spherical coordinates (l,q,a) by:

X = r.sinq.cosa

Y = r.sinq.sina

Z = r.sinq

Using the same we get for P,

Y = P.sinq.sina

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Human gametes are produced by

A) Mitosis B) Meiosis
C) Replication D) None of the above
 
Answer & Explanation Answer: B) Meiosis

Explanation:

In humans all reproduction is sexual. It involves joining together haploid gamete cells from each parent with half the normal number of chromosomes to make a new cell containing both parents' genetic material. This is a diploid zygote. The cells from each parent that combine to form the zygote are called gametes.

 

Meiosis produces haploid gametes from a diploid parental cell.

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Filed Under: General Science
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Q:

Lens is made up of

A) Pyrex glass B) Flint glass
C) Ordinary glass D) Cobalt glass
 
Answer & Explanation Answer: B) Flint glass

Explanation:

Lens is made up of Flint glass.

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Filed Under: General Science
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Q:

Which one of the following elements does not form solid hydrogen carbonate?

A) Sodium B) Potassium
C) Caesium D) Lithium
 
Answer & Explanation Answer: D) Lithium

Explanation:

Potassium bicarbonate (also known as potassium hydrogen carbonate or potassium acid carbonate) is the inorganic compound with the chemical formula KHCO3. It is a white solid

Sodium bicarbonate is a white solid that is crystalline, but often appears as a fine powder.

LiHCO3 is found in solution form while rest alkali metals hydrogen carbonates are solid due to the anomalous properties of Li and its diagonal relationship with the Mg.

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Filed Under: Chemistry
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Q:

Which state introduces a new Open Online Learning Programme 'KOOL'?

A) Kerala B) Telangana
C) Uttar Pradesh D) Tamil Nadu
 
Answer & Explanation Answer: A) Kerala

Explanation:

The Kerala Infrastructure and Technology for Education (KITE) is the platform that can be used to train teachers, students and the general public. KOOL is a major step by the State of Kerala to become Indias first complete digital state in Education.

 

KOOL has been designed in a MOOC (Massive Open Online Course model), which is becoming popular worldwide.

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Filed Under: Indian Geography
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Q:

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.
 
Objective

A)

Fair

B)

Detached

C)

Straight

D)

Prejudiced

 
Answer & Explanation Answer: D)

Prejudiced



Explanation:
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Filed Under: English
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Q:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the fourand indicate it by selecting the appropriate option

She must ______ a great time at her birthday party.

A) be having B) has
C) be had D) is having
 
Answer & Explanation Answer: A) be having

Explanation:
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Q:

What are the different job scheduling in operating systems?

Answer

Scheduling is the activity of the deciding when process will receive the resources they request.


FCS ---> FCSFS stands for First Come First Served. In FCFS the job that has been waiting the longest is served next.


Round Robin Scheduling--->Round Robin scheduling is a scheduling method where each process gets a small quantity of time to run and then it is preempted and the next process gets to run. This is called time-sharing and gives the effect of all the processes running at the same time


Shortest Job First ---> The Shortest job First scheduling algorithm is a nonpreemptive scheduling algorithm that chooses the job that will execute the shortest amount of time.


Priority Scheduling--->Priority scheduling is a scheduling method where at all times the highest priority process is assigned the resource.

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