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Q:

The principal quantum number indicates what property of an electron?

A) energy of electron B) distance of electron from nucleus
C) both a & b D) number of subshells
 
Answer & Explanation Answer: C) both a & b

Explanation:

The principal quantum number is the property of an electron which determines the energy of electron and the distance of electron from the nucleus of an atom.

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Filed Under: Chemistry
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Q:

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

I am _______________this crime.

A) ignorant on B)  innocent of
C) indebted to D) ignoring
 
Answer & Explanation Answer: B)  innocent of

Explanation:
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Filed Under: English
Exam Prep: TOEFL , GRE , CAT

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Q:

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

 

To quit on someone

 

A) To fire someone from a job. B) To cheat with someone.
C) To give up on a difficult person. D) To stop helping someone, especially when the support is needed.
 
Answer & Explanation Answer: D) To stop helping someone, especially when the support is needed.

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

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Q:

What two countries have nearly 50% of global coal reserves?

A) Iran & USA B) USA & China
C) Russia & USA D) Brazil & Russia
 
Answer & Explanation Answer: C) Russia & USA

Explanation:

United States and Russia have together almost 400 billion tones. Which represents nearly 50% of world's reserves of coal.

 

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Filed Under: World Geography
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Q:

Guernica, the world famous painting was painted by 

A) Van Gogh B) Michelangelo
C) Picasso D) Leonardo Da Vinci
 
Answer & Explanation Answer: C) Picasso

Explanation:
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Filed Under: World History

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Q:

Which country has recorded second highest COVID19 death toll in world after China?

A) Italy B) Iran
C) India D) Japan
 
Answer & Explanation Answer: A) Italy

Explanation:
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Filed Under: General Awareness
Exam Prep: Bank Exams

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Q:

An electron and a proton starting from rest get accelerated through potential difference of 100kV. The final speeds of the electron and the proton are Ve and Vp respectively. Which of the following relations is correct?

A) Ve > Vp B) Ve < Vp
C) Ve = Vp D) Cannot be determined
 
Answer & Explanation Answer: A) Ve > Vp

Explanation:

Both when accelerated through a potential difference of 100KV, they will have the same energy. The mass of the electron is less than the mass of a proton, hence it will move faster(momentum).

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

The head mirror used by ENT doctors is

A) plano-convex B) convex
C) concave D) plane
 
Answer & Explanation Answer: C) concave

Explanation:

The head mirror used by ENT doctors is concave.

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Filed Under: General Science
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