Questions

Q:

Why does'nt the hydrogen atom emit X-rays?

A) It is very small in size B) It has only one electron
C) Its energy levels are very close to each other D) it is highly electropositive
 
Answer & Explanation Answer: C) Its energy levels are very close to each other

Explanation:

For an atom to emit X-rays it should have difference in energy levels

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Filed Under: Physics

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Q:

In which country 'The SolarWinds hack', a cyber attack was recently discovered?

 

A) China B) Russia
C) US D) Japan
 
Answer & Explanation Answer: C) US

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

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Q:

Net National product of a country is

A) GDP minus depreciation allowances B) GDP plus net income from abroad
C) GNP minus net income from abroad D) GNP minus depreciation allowances
 
Answer & Explanation Answer: D) GNP minus depreciation allowances

Explanation:
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Filed Under: Indian Economy

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Q:

Light year is a unit of

A) time B) speed of light
C) distance D) mass
 
Answer & Explanation Answer: C) distance

Explanation:
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Filed Under: Physics

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Q:

The third vehicle in Buddhism was Known as

A) Mahasanghika B) Zen
C) Vajrayana D) None of these
 
Answer & Explanation Answer: C) Vajrayana

Explanation:
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Filed Under: Indian History

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Q:

The one most important feature of the Mauryan Administration was 

A) wide powers enjoyed by the provicial governors B) the presence of a ' council of ministers '
C) the presence of vast, numerous powers of the bureaucracy D) an extensive network of spy-system
 
Answer & Explanation Answer: C) the presence of vast, numerous powers of the bureaucracy

Explanation:
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Q:

Microwave communication uses high-frequency.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Microwaves are high-frequency signals in the 300 MHz to 300 GHz range. This is in contrast to radio signals, which are typically broadcast in all directions. Radio signals operate in the 3 Hz to 300 MHz range.


Microwave signals are used for both satellite and ground-based communications.

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Subject: Physics
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Q:

The recent trial run of 'odd-even' traffic scheme for Delhi was based on

 

 

A) odd-even calendar months B) odd-even calendar dates
C) vehicle registration numbers D) odd-even hours during 8 am to 8 pm
 
Answer & Explanation Answer: C) vehicle registration numbers

Explanation:
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