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Q:

What percentage of the total area of lithosphere has the expansion of mountains?

 

A) around 26-27% B) around 30-31%
C) around 33-34% D) around 41-42%
 
Answer & Explanation Answer: A) around 26-27%

Explanation:
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Filed Under: Indian Geography
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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

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Filed Under: Indian History

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Q:

Kilohertz is a unit which measures

A) Electromagnetic radio wave frequencies B) Electric resistance
C) Power used by a current of one ampere D) Voltage
 
Answer & Explanation Answer: A) Electromagnetic radio wave frequencies

Explanation:

The hertz (Hz) is defined as one cycle per second and is a SI unit of frequency. Here kilohertz is also a unit of frequency of waves and is defined as 1000 cycles per second. Radio waves are measured in kilohertz (KHz).

 

Kilohertz_is_a_unit_which_measures1561453991.jpg image

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Filed Under: Physics
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Q:

Which of the following is/are the function(s) of bile juice released from the liver?

 

I. Make the food coming from stomach alkaline.

II. Conversion of proteins into amino acids.

III. Break down of fats into smaller globules.

 

A) Only I   B) Only II and III  
C) Only I and III   D) All I, II and III  
 
Answer & Explanation Answer: C) Only I and III  

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Filed Under: Biology
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Q:

What causes brownian motion in colloids?

A) coagulation of particles and the dispersed phase B) erratic flashes of light
C) molecules of the dispersion medium colliding with dispersed phase particles D) All the above
 
Answer & Explanation Answer: C) molecules of the dispersion medium colliding with dispersed phase particles

Explanation:

When their is a colloid in the solution, then it will show the Brownian movement, such as dust particle in the air will show the Brownian movement.

 

Hence, Brownian movement arises due to the impact of the molecules of the dispersion medium with the colloidal particles. It has been postulated that the impact of the molecules of dispersion medium on the colloidal particles are unequal.

 

This leads to the zig-zag (random) motion of the colloidal particles.

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Filed Under: Physics
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Q:

In the context of stock Market, the abbreviation IPO stands for

A) Immediate Payment Order B) Internal Policy Obligation
C) Initial Public Offering D) None of these
 
Answer & Explanation Answer: C) Initial Public Offering

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Filed Under: General Awareness

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Q:

Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity?

A) Supertype entity B) Subtype entity
C) Archetype entity D) Instance entity
 
Answer & Explanation Answer: A) Supertype entity

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Filed Under: Database

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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
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