Questions

Q:

An electron and a proton starting from rest get accelerated through potential difference of 100kV. The final speeds of the electron and the proton are Ve and Vp respectively. Which of the following relations is correct?

A) Ve > Vp B) Ve < Vp
C) Ve = Vp D) Cannot be determined
 
Answer & Explanation Answer: A) Ve > Vp

Explanation:

Both when accelerated through a potential difference of 100KV, they will have the same energy. The mass of the electron is less than the mass of a proton, hence it will move faster(momentum).

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Filed Under: Physics
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Q:

Lacto-ovo vegetarians would not eat

A) Fish and egg B) Egg, meat and milk products
C) Meat, poultry, milk products D) Meat, poultry, fish
 
Answer & Explanation Answer: D) Meat, poultry, fish

Explanation:

Lacto-ovo vegetarians who eat milk products and eggs but would not eat Meat, poultry, fish.

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Filed Under: General Science
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Q:

One function of sphincter muscles is to

A) secrete digestive juices into the GI tract B) grind large food particles
C) trigger hormone release D) control the passage of food through the GI tract
 
Answer & Explanation Answer: D) control the passage of food through the GI tract

Explanation:
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Filed Under: Biology
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Q:

The light reactions of photosynthesis supply the calvin cycle with

A) CO2and ATP B) ATP and NADPH
C) light energy D) H2O and NADPH
 
Answer & Explanation Answer: B) ATP and NADPH

Explanation:

The light reactions of photosynthesis supply the calvin cycle with ATP and NADPH.

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Q:

(as environmental tools) P (for military purpose) Q (are finding various new uses the world’s) R (fastest computers initially conceived) S

The correct sequence should be

A) S Q R P B) P Q R S
C) R P S Q D) Q P S R
 
Answer & Explanation Answer: A) S Q R P

Explanation:

Since, the starting statement carries a subject; S will be the first statement as it talked about the world’s fastest computers. The next statement describes the initial use of the same and the statement that follows states the new uses of the computers as environmental tools. Thus SQRP is the correct sequence and thus form a coherent paragraph.

The correct formation would be, ‘The world’s fastest computers initially conceived for military purposes are finding various new uses as environmental tools.

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Filed Under: English
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Q:

Dr. Boutrons Boutros Ghali, the Secretary general of UNO belongs to 

A) Iran B) Korea
C) Egypt D) Saudi Arabia
 
Answer & Explanation Answer: C) Egypt

Explanation:
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Filed Under: World Organisations

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Q:

Atrophy is a condition that occurs when

A) muscle decreases in size and function because of disease or trauma B) carbon dioxide, lactic acid, and other wastes accumulate in the muscle
C) increased use of skeletal muscle causes an increase in its strength D) the tendons that attach muscle to bone become stretched or injured
 
Answer & Explanation Answer: A) muscle decreases in size and function because of disease or trauma

Explanation:
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Filed Under: Biology
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Q:

In Paramecium, the food is moved to a specific spot by the movement of ______ which cover the entire surface of the cell.

A) cilia B) villi
C) pseudopodia D) vacuole
 
Answer & Explanation Answer: A) cilia

Explanation:
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Filed Under: Biology
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