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Q:

Which is faster Light or Sound?

A) Light B) Sound
C) Both are same D) Can't be determined
 
Answer & Explanation Answer: A) Light

Explanation:

Light travels Faster than Sound.

 

Light :

1. Light doesn't require a medium to travel.

2. It travels in the vaccum with the speed of 1,86,000 miles per second.

 

Sound:

1. Sound rquire a medium.

2. It travels in the Air with the speed of 340 meters per second.

3. It travels Faster in Water than in Air.

4. It travels Faster in Steel than in Water. 

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank PO , Database Administration , IT Trainer

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Q:

The hormone that helps in the implantation of embryo

A) Testosterone B) Insulin
C) Prolactin D) Progesterone
 
Answer & Explanation Answer: D) Progesterone

Explanation:
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Filed Under: Biology

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Q:

Where is the Devils Tower located?

A) black hills of crook county B) belgium
C) colombia D) Georgia
 
Answer & Explanation Answer: A) black hills of crook county

Explanation:

Devils tower is located in black hills of crook county of north eastern whyoming .It was the first declared United States National Monument.

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Filed Under: Famous Places

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Q:

When two similar sources vibrate with slightly different frequencies , a regular rise and fall occurs in the loudness of tone. This phenomenon is known as 

A) doppler effect B) beats
C) resonance D) echo
 
Answer & Explanation Answer: B) beats

Explanation:

Beats means the periodic increase and decrease in loudness heard when two notes of nearly the same frequency are sounded simultaneously.

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Filed Under: Physics

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Q:

The Kinetic energy of gas molecules

A) is unaffected by temperature variations B) decreases with increase of temperature
C) increases with decrease of temperature D) increases with increase of temperature
 
Answer & Explanation Answer: D) increases with increase of temperature

Explanation:

Kinetic Energy K.E = 12mV2  or 

K.E ∝V2, Where 'm' is the mass and 'v' is the velocity of molecules.

 

Velocity is proportional to temperature. Hence, KE is proportional to temperature and would increase with temperature.

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Filed Under: Chemistry
Exam Prep: AIEEE

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Q:

Air is 

A) compound B) element
C) mixture D) solution
 
Answer & Explanation Answer: C) mixture

Explanation:
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Filed Under: Chemistry

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Q:

How many states in India are coastal

A) 7 B) 8
C) 9 D) 10
 
Answer & Explanation Answer: C) 9

Explanation:
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Filed Under: Indian Geography

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Q:

What happens when the Quality Score of a keyword is increased?

Answer

The ad may earn a higher average position.

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Subject: Google Certification

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