Q:

Total internal reflection can take place when light travels from

A) Air to glass	B) Air to water
C) Water to glass	D) Diamond to glass

Answer & Explanation Answer: D) Diamond to glass

Explanation:

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Filed Under: Physics

39 11756

Q:

The famous battle of Takkolam of South India was fought between _______

A) Cholas and North Chalukyas	B) Cholas and Rashtrakutas
C) Cholas and Hoyasals	D) Cholas and Pandyas

Answer & Explanation Answer: B) Cholas and Rashtrakutas

Explanation:

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Filed Under: Indian History

17 11744

Q:

The metal which reacts most violently with with cold water is

A) calcium	B) sodium
C) magnesium	D) potassium

Answer & Explanation Answer: D) potassium

Explanation:

Potassium reacts violently with water liberating hydrogen. The reaction is so violent that the liberated hydrogen catches fire.

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Filed Under: Chemistry

47 11740

Q:

What is the name of the virus that fool a user into downloading and executing them by pretending to be useful applications ?

A) Trojan horses	B) Keylogger
C) Worm	D) File virus

Answer & Explanation Answer: A) Trojan horses

Explanation:

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Filed Under: Computer
Exam Prep: Bank Exams , CAT
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32 11707

Q:

Find the missing number in the given puzzle?

missing_number_puzzle1546602135.jpg image

A) 963	B) 696
C) 969	D) 966

Answer & Explanation Answer: C) 969

Explanation:

1 + 1 = 121 = 1x1 1+1 1x1

1 + 2 = 134 = 1x1 1+2 2x2

2 + 2 = 444 = 2x2 2+2 2x2

3 + 2 = 954 = 3x3 3+2 2x2

3 + 3 = ?

Similarly, 3x3 3+3 3x3 = 969

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Filed Under: Number Puzzles
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40 11696

Q:

Delayed payload of some viruses is also called as _____

A) Bomb	B) Late - Virus
C) Time	D) Anti-virus

Answer & Explanation Answer: A) Bomb

Explanation:

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Filed Under: Computer
Exam Prep: Bank Exams , CAT
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22 11689

Q:

What is Black, when Clean and White, when Dirty?

A) Shoes	B) Car
C) Chalkboard	D) None

Answer & Explanation Answer: C) Chalkboard

Explanation:

It is Blackboard or Chalkboard which is Black when clean, and as you write on it with white chalk it becomes dirty in White color.

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Filed Under: Word Puzzles
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12 11681

Q:

Cinematography was invented by

A) Graham Bell	B) Edison
C) Zeiss	D) Faraday

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