Q:

What was invented by Zacharias Jansen?

A) Jet Engine B) Radium
C) Microscope D) Electric Lamp
 
Answer & Explanation Answer: C) Microscope

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Filed Under: Inventions
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Q:

Deen Dayal Rasoi Yojana to provide food at only Rs. 5 has been launched on 6th April, 2017 by which state?

A) Chattisgarh B) Haryana
C) Madhya Pradesh D) Uttar Pradesh
 
Answer & Explanation Answer: C) Madhya Pradesh

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Filed Under: Indian Geography
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Q:

In which city is the Forest Research Institute of India located?

A) New Delhi B) Hyderabad
C) Dehradun D) Shimla
 
Answer & Explanation Answer: C) Dehradun

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Filed Under: Indian Geography
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Q:

pH of the human blood is ______.

A) Slightly Acidic B) Highly Acidic
C) Slightly Basic D) Highly Basic
 
Answer & Explanation Answer: C) Slightly Basic

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Filed Under: Chemistry
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Q:

A radio-active substance has a half life of six months. Three-fourth of the substance will decay in ______.

A) Six months B) Ten months
C) Twelve Months D) Twenty four months
 
Answer & Explanation Answer: C) Twelve Months

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Filed Under: Chemistry
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Q:

What is a bug in computer terminology?

A) A virus B) A program
C) An error in program D) Magnetic disk storage device
 
Answer & Explanation Answer: C) An error in program

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Filed Under: Computer
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2 1168
Q:

Which one of the following is not a property of electromagnetic waves?

A) Electromagnetic waves do not show interference and diffraction. B) Oscillating electric field and magnetic field are perpendicular to each other.
C) Electromagnetic waves are transverse waves D) Electromagnetic waves do not require a medium to propagate.
 
Answer & Explanation Answer: A) Electromagnetic waves do not show interference and diffraction.

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Filed Under: Physics
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Q:

It is difficult to fix a nail on a freely suspended wooden frame. Which law supports this statement?

 

A) Law of inertia B) Newton's second law
C) Newton's third law D) Pascal's law
 
Answer & Explanation Answer: C) Newton's third law

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