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Q:

A doppler effect occurs when a source of sound moves

A) away from you B) towards you
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The Doppler effect or Doppler shift is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source. 

a_doppler_effect_occurs_when_a_source_of_sound_moves1560770484.jpg image

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Filed Under: Physics
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Q:

Which one of the following is not an award given on the National Awards Day

A) Rajiv Khel Ratna B) Arjun Award
C) Dhyanchand Award D) Vishwamitra Award
 
Answer & Explanation Answer: D) Vishwamitra Award

Explanation:
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Filed Under: Books and Authors

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Q:

What is the common name of CaOCl2?

A) Baking Powder B) Baking Soda
C) Bleaching Powder D) Washing Soda
 
Answer & Explanation Answer: C) Bleaching Powder

Explanation:
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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

Which of the following elements is a metal?

A) Se B) I
C) Zn D) S
 
Answer & Explanation Answer: C) Zn

Explanation:

In chemistry, a metal is an element that readily forms positive ions (cations) and has metallic bonds. Metals are opaque, lustrous elements that are good conductors of heat and electricity. Most metals are malleable and ductile and are, in general, denser than the other elemental substances.

 

Examples of metals are aluminium, copper, iron, tin, gold, lead, silver, titanium, uranium, and zinc.

 

Here Se - Selenium is an element but is not a metal, S - Sulphur is not a metal and I - Iodine is also not a metal.

 

Hence, Zn - Zinc is the only metal in the given options.

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Filed Under: Chemistry
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Q:

A paper written by hand

A) Thesis B) Handicraft
C) Manuscript D) Handiwork
 
Answer & Explanation Answer: C) Manuscript

Explanation:

A paper written by hand are called as Manuscripts.

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Filed Under: English
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Q:

Among all two-legged creatures, which creature runs the fastest?

Answer

Ostrich

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Subject: Animals and Birds

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Q:

Can You Solve This Tricky Puzzle In 10 Seconds?

Answer

In the last row fifth letter is 'I'.

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Subject: Logic Puzzles Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

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Q:

_U_R_Y_

Complete this 7 letter word _U_R_Y_

1. Girls like it
2. Boys use it
3. Parents hate it.

Answer

HURRAYS.

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Subject: Missing letters puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
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