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Q:

Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes

 

A) 2R B) R/2
C) 5R/4 D) 3R/4
 
Answer & Explanation Answer: C) 5R/4

Explanation:

So, resistance of Wire 2 is R/4 as radius is half of wire 1, so area would be 4 times of wire 1.

Now for resistance in series. R= R1 + R2.

Therefore, Final R= R + R/4 = 5R/4

 

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Filed Under: Physics
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Q:

The difference between two numbers is 25. The smaller number is 1/6th of the larger number. What is the value of the smaller number?

A) 10 B) 5
C) 50 D) 25
 
Answer & Explanation Answer: B) 5

Explanation:

Let the larger number be p

Then, smaller number = 1/6 x p = p/6

Given difference between two numbers = 25

p - p/6 = 25

5p/6 = 25

5p = 150

p = 30

Then, p/6 = 30/6 = 5

Hence, larger number = 30 and smaller number = 5 which makes the difference = 25.

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Filed Under: Problems on Numbers
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Q:

How many Enzymes are there in the Human Body?

Answer

There are nearly about 75000 enzymes of 3 classes are there in the human body. They are :


1. Metabolic Enzymes - Enzymes that help to run our Bodies


2. Digestive Enzymes - Enzymes that help in digesting Food


3. Food Enzymes - Enzymes from raw foods that start our Food digestion.

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Subject: Biology Exam Prep: AIEEE , Bank Exams , CAT
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Q:

Which part of the female reproductive system prepares itself every month to receive and nurture the growing child?

A) Ovary B) Uterus
C) Vagina D) Cervix
 
Answer & Explanation Answer: B) Uterus

Explanation:
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Filed Under: Biology
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Q:

Is yeast a fungus or bacteria?

Answer

Yeast belongs to members of the Kingdom Fungi.


 


Yeast are single-celled microorganisms that are classified, along with molds and mushrooms in Fungi family. 


 


Yeasts are evolutionally diverse and are therefore classified into two separate phyla, Ascomycota or sac fungi and Basidiomycota or higher fungi, that together form the subkingdom Dikarya.

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Subject: Biology Exam Prep: AIEEE , Bank Exams , CAT
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Q:

Which Indian social theorist had argued that the idea of a homogenized the 'cultural arrogance of post-enlightenment Europe'?

 

A) Ashis Nandy B) Partha Chatterjee
C) T.K.Oommen D) Rajni Kothari
 
Answer & Explanation Answer: A) Ashis Nandy

Explanation:

Ashis Nandy traced the roots of colonialism's mandate to absolutize the relative differences between cultures to the cultural arrogance of Enlightenment Europe.

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Filed Under: General Awareness
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Q:

If 4(x+y) = 256 and (256)(x-y) = 4, then what is the value of x and y?

A) 17/8, 15/8 B) 17/4, 15/4
C) 9/17, 15/17 D) 8/17, 8/15
 
Answer & Explanation Answer: A) 17/8, 15/8

Explanation:
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Filed Under: Simplification
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Q:

Particles of matter are continuously moving.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Yes, in any matter the particles are always moving. But the speed of the particles moving sepends on the temperature. As temperature increases, the speed of the particles also increases.

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Subject: General Science
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