Questions

Q:

What is a Contact Force and explain with an example?

Answer

A Contact force is a force applied to a body by another body that is in contact with it. Contact force acts on a point of direct contact between the two objects. This force can either be continuous as a continuous force or can be momentary in the form of an impulse. Contact force is governed by Newton’s Laws.


Examples :: Contact force is responsible for most of the interactions we experience in the daily life.


1. Writing your name with a pen, pushing a car up a hill, lifting an object, etc...


2. Kicking a ball, hammering a nail, etc...


are some of the everyday examples where contact forces are at work.


In the first case, the force is continuously applied by the person on the car or pen or an object while in the second case the force is delivered in a short impulse.


 


Contact forces are often decomposed into orthogonal components


one perpendicular to the surface in contact called the normal force, and


one parallel to the surface in contact, called the friction force.

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Q:

Which of the following indexes is developed to measure life expectancy, level of literacy, education and standard of living of people in a country?

A) Inflation B) Sensex
C) SLR D) Human Development Index (HDI)
 
Answer & Explanation Answer: D) Human Development Index (HDI)

Explanation:
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Q:

The storage form of glucose in animals is

A) Starch B) Glucose
C) Glycogen D) None of the above
 
Answer & Explanation Answer: C) Glycogen

Explanation:

Glycogen is the storage form of glucose in animals and humans which is analogous to the starch in plants. Glycogen is synthesized and stored mainly in the liver and the muscles.

 

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Q:

Which of the following satellites is the first satellite made by complete native technology?

A) Bhaskara B) Aryabhatta
C) Rohini D) Kalpana-1
 
Answer & Explanation Answer: B) Aryabhatta

Explanation:
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Filed Under: General Awareness

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Q:

What is unit of Viscosity ?

A) coulomb B) newton second per square meter
C) watt per meter per degree celcius D) joule per kilogram per Kelvin
 
Answer & Explanation Answer: B) newton second per square meter

Explanation:

coulomb is unit of Electric Charge,

watt per meter per degree celcius is unit of Thermal Conductivity,

joule per kilogram per Kelvin is unit of Specific Heat capacity.

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Q:

Which country's Parliament became first in the world to run fully on solar energy  ?

A) Japan B) Pakistan
C) China D) Myanmar
 
Answer & Explanation Answer: B) Pakistan

Explanation:
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Q:

Makaibari is the costliest variety of what?

A) Coffee B) Pepper
C) Tea D) Water
 
Answer & Explanation Answer: C) Tea

Explanation:

Makaibari is the world's first tea factory and was established in 1859 in Darjeeling, West Bengal. 

 

It is most expensive tea in India which costs around 1.12 lakhs for 1 kg of tea.

 

Hence, Makaibari is the costliest variety of Tea.

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Q:

What was the theme of World Consumer Rights Day 2017 ?

A) A Step Towards Digital World B) Building a Digital World Consumers can Trust
C) A smart Digital Consumers D) A Tradition of Trust With Consumers
 
Answer & Explanation Answer: B) Building a Digital World Consumers can Trust

Explanation:

World Consumer Rights Day is being observed today (15 March 2017) which is an awareness day and theme for this year is 'Building a Digital World Consumers can trust'.

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