Thursday, May 5, 2011

GK_BLAST GKB_Q115

GKB_Q115
Q-The reflex angle between the hands of a clock at 10:25 is ?(in degree)

(Note: At 10:25, hour hand is not at sharp 10)



The angle between hands is 180+?
Now the problem is to find ?=x
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We know that hour hand covers 30 degree in one hour and minute hand covers 360 degree in one hour.
     360 degree of minute hand = 30 degree of hour hand
(in 25 minute, minute hand covers 150 degree)
So 150 degree of minute hand = (30*150)/360 degree of hour hand
Hence hour hand cover 12.5 degree.
So
x=30-12.5=17.5 degree
Therefore, total angle between hands is 180+17.5=197.5 degree

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Sunday, April 17, 2011

India's first Tidal power plant

The Indian state of Gujarat has cleared plans for the installation of India’s first commercial tidal power plant. The proposal to build a tidal power plant with an initial capacity of 50 MW was made by London-based marine energy developer Atlantis Resources Corporation.
The company has signed a MoU with the government of Gujarat to set up the power plant by 2013. The plant is likely to be scaled up to a capacity of 250 MW at a cost of about $165 million. The project will be developed in partnership with the Gujarat Power Corporation Limited.

Describing the current global scenario with regard to the total installed capacity, Atlantis’ CEO said that the sector is in its nascent stages and compared it with the early stages of wind energy growth ten years ago.
The capital costs involved in tidal power plants is very high largely due to the extensive civil works required. The average break year time for such power plant varies from 8 to 12 years. Therefore, for the project to be commercially viable the tariffs are need to be attractive.

Monday, April 11, 2011

Handshake Problem...

GKB_Q98
Q-
At a party,every1 shake hands with everybody else.There r 66 handshakes
How many people r there?




Ans- With two people, there is one handshake.
With three people, there are three handshakes.
With four people, there are six handshakes.
In general, with n+1 people, the number of handshakes is the sum of the first n consecutive numbers: 1+2+3+...+n.
Since this sum is n(n+1)/2,
we need to solve the equation n(n+1)/2 = 66.
This is the quadratic equation n2+n-132 = 0.
Solving for n, we obtain 11 as the answer and deduce that there were 12 people at the party.

Friday, April 8, 2011

How many Squares on a Chessboard?

How many Squares on a Chessboard?

Although this investigation seems quite simple, it requires a methodical approach if the correct answer is to be attained.
As the title suggests, the investigation involves children finding out how squares there are on a chessboard. You might think that there are only 64, but you would be wrong...
The diagram below shows that there are indeed 64 squares, you there are also some more...
Don't forget the one large square (shown in red here)...
And, also the 16 two-by-two squares shown below (although these aren't the only 2x2 squares!)...
There are many more different-sized squares on the chessboard.
The complete list of answers is shown below:
1, 8x8 square
4, 7x7 squares
9, 6x6 squares
16, 5x5 squares
25, 4x4 squares
36, 3x3 squares
49, 2x2 squares
64, 1x1 squares
Therefore, there are actually 64 + 49 + 36 + 25 + 16 + 9 + 4 + 1 squares on a chessboard! (in total 204).

Friday, February 11, 2011

Know the technology-3G


Know the technology-3G

Everyone may know that the Apple's iPhone 3G has been launched in India. But many of us are not aware what is 3G. So let's have a brief look into it.
What is 3G?
3G is the next generation of wireless network technology that provides high speed bandwidth (high data transfer rates) to handheld devices. The high data transfer rates will allow 3G networks to offer multimedia services combining voice and data. Additional features also include HSPA(High-Speed packet Access) data transmission capabilities able to deliver speeds up to 14.4Mbit/s on the downlink and 5.8Mbit/s on the uplink
3G wireless networks have the bandwidth to provide converged voice and data services. 3G services will seamlessly combine superior voice quality telephony, high-speed mobile IP services, information technology, rich media and offer diverse content.
What are the Advantages of 3G
A.   3G networks offer users advantages such as:
B.   New radio spectrum to relieve overcrowding in existing systems.
C.   More bandwidth, security, and reliability.
D.   Interoperability between service providers.
E.   Fixed and variable data rates.
F.    Always-online devices. 3G will use IP connectivity, IP is packet based (not circuit based.
G.  Rich multimedia services.
What are Some Disadvantages of 3G?
A.   There are some issues in deploying 3G:
B.   The cost of upgrading base stations and cellular infrastructure to 3G is very high.
C.   Requires different handsets and there is the issue of handset availability.
D.   Base stations need to be closer to each other (more cost).
E.   Tremendous spectrum-license costs, network deployment costs, handset subsidies to subscribers, etc.
F.    High power requirements.

Tuesday, February 8, 2011

Game of CHALKS...[Puzzle]

Game of CHALKS...


    Get set  CHALKS to experience this Puzzle...
All you have to do is to take "SEVEN" new pieces of CHALK and lay them out so that every piece touches every other pieces.
If you can squeak through this problem in under thirty minutes, You are a GENIUS...

Give me your answer on my E-mail (smith.g4g@gmail.com) and give your comments...
Try...
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The picture looks down at the seven pieces of chalks assembled for the solution. The circle in the middle is the end of one piece of chalk, seen head-on. There are two groups of thee pieces each, each group on top of one another, placed around this central piece of chalk on close examination it will be seen that every piece touches every other pieces...

Thursday, February 3, 2011

Anecdote of Channels: 6 to Still Counting…


Part- 1...

How can it be possible?
A service of daily msgs without any cost!!!
Providing tricks!!!
And really it’s Amazing, some of these are working.
How ...  How ...   How..? :-@
What is 9870807070..?                                                                                       

These are the questions which come in my mind and pressures to know more about it.
After there's lot of questions and confusions,
At last I sent a msg,

"ON TRICK_123
To 9870807070"

And it charged Rs. 1.00/-
Ahhh... Thank GOD...
Wait!!!... 1 new msg in my inbox from the same number.

"Success, You are subscribed to TRICK_123 . For list of commands reply HELP.

It's not even that bad to check the site... Its Google Lab SMS channels...
Days went on passing... msgs are still coming and no charges...

One day I get a message(From TRICK_123)...

"Hey guys, now we have 480 member.
Thanx  4 joining...
@ JATIN”

Who is Jatin??? OMG... owner of this channel...
Who the hell in this world has time for all these…!!!
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After having a sound sleep...
For once I thought... Actually what I am doing? Whole day, week, month, Year...
Only Dreaming, Dreaming and Dreaming...
Why should I not have my own SMS Channel for my friends, for my College…
OK, Now I decided to start 3 SMS Channels,
One of General Knowledge (for all), second one for our college and third one for Tricks(PC & Mobile)
But what should be the Names..?????????????

To be continued...

(In next parts- ‘Making of channels and problems faced… ‘)
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