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Q:

Sound waves cannot travel in

A) Vacuum B) Water
C) Glass D) Hydrogen gas
 
Answer & Explanation Answer: A) Vacuum

Explanation:

A Sound wave needs a medium for propogation. Hence, Sound cannot travel through a vacuum.

A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.

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Filed Under: Physics
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Q:

Which is not true of the Intertropical Convergence Zone?

A) It features heavy precipitation B) It's where the trade winds collide
C) It's a high-pressure zone with sinking air D) It is also known as the doldrums
 
Answer & Explanation Answer: C) It's a high-pressure zone with sinking air

Explanation:

The Inter-tropical convergence zone rather has rising air, with common thunderstorms and attendant precipitation and is known by seamen as the doldrums.

Inter-tropical convergence zone is where the trade winds collide.

 

Hence, it is not a high pressure zone with sinking air.

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Q:

What is the most commonly spoken language in the world?

A) Mandarin Chinese B) English
C) Spanish D) Hindi
 
Answer & Explanation Answer: A) Mandarin Chinese

Explanation:
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Filed Under: World Geography
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Q:

The most important cause for the outbreak of the Ghaddar revolution was the

A) Commencement of World War I B) Hanging of Kartar Singh Sarabha
C) Kamagato Maru Incident D) Arrest of Lala Hardayal
 
Answer & Explanation Answer: C) Kamagato Maru Incident

Explanation:
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Filed Under: Indian History

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Q:

India's First Rural Telephone Exchange is located in 

A) Karnataka B) Andhra Pradesh
C) Kerala D) Uttar Pradesh
 
Answer & Explanation Answer: A) Karnataka

Explanation:
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Q:

The planet that takes 88 days to make one revolution of the sun is __________

A) Mercury B) Saturn
C) Jupiter D) Mars
 
Answer & Explanation Answer: A) Mercury

Explanation:
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Filed Under: World Geography

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Q:

When light enters from air to water, then its 

A) frequency increases and speed decreases B) frequency is same but the wavelength is smaller in water than in air
C) frequency is same but the wavelength is larger in water than in air D) frequency and speed both decreases
 
Answer & Explanation Answer: B) frequency is same but the wavelength is smaller in water than in air

Explanation:
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Filed Under: Physics

13 9161
Q:

World Wide Web is being standard by

A) W3C B) World Wide Web Standard
C) Worldwide corporation D) World Wide Consortium
 
Answer & Explanation Answer: A) W3C

Explanation:

World Wide Web is being standard by W3C.

 

The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards. Led by Web inventor and Director Tim Berners-Lee and CEO Jeffrey Jaffe, W3C's mission is to lead the Web to its full potential.

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