Questions

Q:

Sound waves can not travel through a

 

A) copper wire placed in air B) silver slab placed in air
C) glass prism placed in water D) wooden hollow pipe placed in vacuum
 
Answer & Explanation Answer: D) wooden hollow pipe placed in vacuum

Explanation:

Sound is a kind of energy created when something vibrates. When this vibration reaches an ear, it is translated into what we recognize as a sound. Sound vibration must travel through matter. Therefore, it can travel through air and water but not through vacuum.

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Filed Under: Physics
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Q:

If the Distance-Time graph is a curve then it represents _______________.

 

A) uniform speed   B) constant displacement  
C) uniform momentum   D) non-uniform speed
 
Answer & Explanation Answer: B) constant displacement  

Explanation:
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Filed Under: Physics
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Q:

The famous figure of a dancing girl found in the excavation of Mohenjodaro was made up of

A) terracotta B) Steatite
C) bronze D) red limestone
 
Answer & Explanation Answer: C) bronze

Explanation:
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Filed Under: Indian History

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Q:

Tansen, a great musician of his time, was in the court of –

A) Akbar B) Shahjahan
C) Bahadur Shah D) Jahangir
 
Answer & Explanation Answer: A) Akbar

Explanation:
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Filed Under: Indian Culture

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Q:

Dr. M.S.Subbalakshmi has distinguished herself in the field of 

A) Kathak B) Bharathanatyam
C) Playing Violin D) Vocal Music
 
Answer & Explanation Answer: D) Vocal Music

Explanation:
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Filed Under: Famous Personalities

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Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives.


Prebiotics are the lesser-known gut-health promoters which serve as food for good bacteria inside the gut. "We found that dietary prebiotics can improve non-REM (random eye movement) sleep, as well as REM sleep after a stressful event," said Robert Thompson, a PhD researcher at University of Colorado Boulder in the U.S. Prebiotics are dietary fibres found naturally in foods like artichokes, raw garlic, leeks and onions.

When beneficial bacteria digest prebiotic fibre, they not only multiply, improving overall gut health, but they also release metabolic by-products. Researchers fed three-week-old male rats a diet of either standard chow or chow that included prebiotics. They then monitored the rats' body temperature, gut bacteria and sleep-wake cycles — using electroencephalogram (EEG), or brain activity testing over time. Findings revealed that the rats on the prebiotic diet spent more time in non-rapid-eye-movement (NREM) sleep, which is restful and restorative, than those on the non-prebiotic diet.


What is chow?

A) Type of dietary fibre B) A class of nutrients
C) Rat food D) Sleep enhancer
 
Answer & Explanation Answer: C) Rat food

Explanation:
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Filed Under: English
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Q:

Improve the given sentence if necessary.

Ramesh is working in this factory for the past three months.

A) has been working B) has been worked
C) had worked D) No improvement
 
Answer & Explanation Answer: A) has been working

Explanation:

If some action has started in the past and is still continuing, then present perfect continuous tense should be used instead of present continuous tense. So, the phrase ‘is working’ needs to be replaced with ‘has been working’ to make the sentence contextually correct. Thus, the correct formation would be, ‘Ramesh has been working in this factory for the past three months’.

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Filed Under: English
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Q:

Who is said to have become the chief of the Jain Sangh after the death of Mahavira

A) Jambu B) Bhadrabahu
C) Sthulbhadra D) Sudharma
 
Answer & Explanation Answer: D) Sudharma

Explanation:
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