Questions

Q:

________________ refers to the superposing of two or more coherent waves to produce regions of maxima and minima in space, according to the principle of superposition.

A) Interference B) Rectification
C) Intensity D) Diffraction
 
Answer & Explanation Answer: A) Interference

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Q:

If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is double that of earth and radius is same as that of earth is _________________.

A) 2g B) g
C) g/2 D) 4g
 
Answer & Explanation Answer: A) 2g

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Q:

In which of the following states is the Dudhwa National Park located?

A) Arunachal Pradesh B) Madhya Pradesh
C) Uttar Pradesh D) Andhra Pradesh
 
Answer & Explanation Answer: C) Uttar Pradesh

Explanation:

The Dudhwa National Park is a national park in the Terai of Uttar Pradesh, India. It is part of the Dudhwa Tiger Reserve.

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Q:

As of February 2018, who is the Indian-born CEO of the Nokia company?

A) Sundar Pichai B) Ajaypal Singh Banga
C) Rajeev Suri D) Satya Nadella
 
Answer & Explanation Answer: C) Rajeev Suri

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Q:

The warm and cold ocean currents are caused by

A) Prevailing winds B) Earth's rotation
C) Variations in density of sea water D) All of these
 
Answer & Explanation Answer: D) All of these

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Q:

Plasma is formed in the stars because of very

A) high temperature B) high pressure
C) low pressure D) low temperature
 
Answer & Explanation Answer: A) high temperature

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Q:

Which of the following is correct?

A) (6x + y)(x - 6y) = 6x^2+ 35xy - 6y^2 B) (6x + y)(x - 6y) = 6x^2- 35xy - 6y^2
C) (6x + y)(x - 6y) = 6x^2- 37xy - 6y^2 D) (6x + y)(x - 6y) = 6x^2+ 37xy - 6y^2
 
Answer & Explanation Answer: B) (6x + y)(x - 6y) = 6x^2- 35xy - 6y^2

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Q:

Sher Shah Sur defeated which Mughal emperor?

A) Humayun B) Timur Lang
C) Nadir Shah D) Ahmed Shah Abdali
 
Answer & Explanation Answer: A) Humayun

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