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Q:

Which of the following is not a transverse wave?

A) Light waves B) Radio waves
C) Sound waves D) All the above
 
Answer & Explanation Answer: C) Sound waves

Explanation:
Light and Radio waves are both different frequency/wavelengths of electromagnetic radiation, which consists of two components electric and magnetic of perpendicular, transverse waves. 

 
Sound, on the other hand, is a longitudinal wave which oscillates parallel to it's medium (back and forth instead of up and down).
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Filed Under: Physics
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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Q:

In photography, the compound of nitrogen used is 

A) Potassium nitrate B) Silver nitrate
C) Ammonium carbonate D) Ammonium bicarbonate
 
Answer & Explanation Answer: B) Silver nitrate

Explanation:

Silver nitrate is the basic substance from which silver bromide is obtained. The photographic films are impregnated with the light sensitive AgBr.

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Filed Under: Chemistry

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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.


Under the weather

 

A) Become a bit unpredictable like the weather. B) Slightly unwell or in low spirits.
C)  Feel optimistic simply because the weather is good. D)  Feel depressed because you expect bad weather.
 
Answer & Explanation Answer: B) Slightly unwell or in low spirits.

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

52 6900
Q:

What is an Extension of Entity Type?

Answer

The collections of entities of a particular Entity Type are grouped together into an entity set.

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Subject: Oracle Certification
Job Role: Analyst , Database Administration , IT Trainer , Project Manager

26 6891
Q:

Which ocean surrounds Antarctica?

A) Atlantic ocean B) Indian ocean
C) Pacific ocean D) Southen ocean
 
Answer & Explanation Answer: D) Southen ocean

Explanation:

Antarctica is surrounded on all sides by water. The Indian, Pacific and Atlantic Oceans surround it on all sides. These three Oceans all meet at Antarctica. The three oceans are collectively called the Southern Ocean.

This is the area located south of 50° latitude.

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Filed Under: World Geography
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10 6889
Q:

The main constituent of biogas is

A) Butane B) Methane
C) Hydrogen Sulphide D) Carbondioxide
 
Answer & Explanation Answer: B) Methane

Explanation:

The main constituent of biogas is methane (55-70%), CO2 (30-45%) and some traces of gases such as H2S and ammonia.

Biogas is produced under anaerobic conditions; the process is denominated as anaerobic digestion.

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Filed Under: Chemistry
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Q:

Gammaxene, D.D.T. & Bleaching powder are important compounds of

A) Nitrogen B) Phosphorus
C) Chlorine D) Sulphur
 
Answer & Explanation Answer: C) Chlorine

Explanation:

Gammaxene, D.D.T. & Bleaching powder are important compounds of Chlorine.

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Filed Under: Chemistry
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Q:

The most important official post with vast responsibilities created by Ashoka was

A) Rajuka B) Yukta
C) Dharamamahamatya D) Prativedaka
 
Answer & Explanation Answer: C) Dharamamahamatya

Explanation:
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Filed Under: Indian History

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