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Q:

Which of the following statements is Incorrect?

 

A) The particles of matter have spaces between them B) The particles of matter are extremely small
C) The particles of matter attract each other D) The particles of matter are in stationary state
 
Answer & Explanation Answer: D) The particles of matter are in stationary state

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Filed Under: Chemistry
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Q:

Calculate the power (in W) of an engine if it can perform 120 J of work in 3 seconds.

 

A) 360 B) 80
C) 180 D) 40
 
Answer & Explanation Answer: D) 40

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Filed Under: Physics
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Q:

Fats, oils and cholesterol are all types of what?

 

 

A) Cell membranes B) Lipids
C) Hormones D) Fatty acids
 
Answer & Explanation Answer: D) Fatty acids

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Filed Under: Biology
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Q:

Improve the bracketed part of the sentence.

 

Everybody is aware that peaceful life respects non-violence and non-interference, yet it is difficult (to maintaining) peace only because public consciousness is not expansive enough to fully understand peace.

A) to maintain B) maintaining
C) maintained D) No improvement
 
Answer & Explanation Answer: A) to maintain

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Filed Under: English
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0 35487
Q:

Match the following.

 

A) I – 2, II – 3, III – 1 B) I – 1, II – 3, III – 2
C) I – 3, II – 1, III – 2 D) I – 3, II – 2, III – 1
 
Answer & Explanation Answer: C) I – 3, II – 1, III – 2

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Filed Under: Biology
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Q:

What is the national flower of Bangladesh?

 

A) Red Rose   B) White Jasmine  
C) Shapla D) Lotus
 
Answer & Explanation Answer: C) Shapla

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Filed Under: General Awareness
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Q:

An astronaut in outer space will observe sky as

A) White B) Black
C) Blue D) Red
 
Answer & Explanation Answer: B) Black

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Filed Under: General Awareness

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Q:

Which of the following statements is/are correct?

1.In June 2016, the LIGO group of scientists announced the detection of a second set of gravitational waves.

2.Gravitational waves were generated due to merger of two black holes at about 1.4 billion light-years distant.

3.Gravitational waves were inserted due to collision of two white dwarf stars at about 1.4 billion light-years distant.

Select the correct answer using the code given below.

 

A) 1 only B) 1 and 2 only
C) 2 and 3 only D) 1, 2 and 3
 
Answer & Explanation Answer: D) 1, 2 and 3

Explanation:

All are correct. Gravitational waves don’t get distorted or altered by interactions with matter as they go through space. gravitational waves have pure information about the objects and events that created them. The Government of India has given approval for the world’s third advanced Laser Interferometer Gravitational Wave Observatory (LIGO-India) to set up in India.

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Filed Under: General Science
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