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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Q:

Why boiling point of water decreases at high altitudes?

A) Because of high temperature	B) Because of low atmospheric pressure
C) Because of low temperature	D) Because of high atmospheric pressure

Answer & Explanation Answer: B) Because of low atmospheric pressure

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Q:

To hear a distinct echo the time interval between the original sound and the reflected sound must be at least

A) 0.2 second	B) 1 second
C) 0.1 second	D) 2 seconds

Answer & Explanation Answer: C) 0.1 second

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Q:

Which of the following is not a commercial source of energy?

A) Coal	B) Petroleum
C) Natural Gas	D) Firewood

Answer & Explanation Answer: D) Firewood

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Q:

When was "Pradhan Mantri Mudra Yojana" launched?

A) September 2014	B) November 2014
C) April 2015	D) January 2016

Answer & Explanation Answer: C) April 2015

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Q:

Who is the author of "My Father is a Hero"?

A) Novoneel Chakraborty	B) Neelima Dalmia Adhar
C) Nishant Kaushik	D) A.P.J. Abdul Kalam

Answer & Explanation Answer: C) Nishant Kaushik

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Q:

Who is the author of "The Hungry Tide"?

A) Amitav Ghosh	B) Mitali Meelan
C) Ravinder Singh	D) Sudha Murty

Answer & Explanation Answer: A) Amitav Ghosh

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Q:

Who invented the Centigrade scale?

A) Anders Celsius	B) Daniel Gabriel Fahrenheit
C) William Thomson	D) Wright Brothers

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