Trick to remember the name of G-8 Countries.

കോൺവെക്സ് - ദീർഘദൃഷ്ടി.
കോൺകേവ് - ഹ്രസ്വദൃഷ്ടി .
സിലണ്ട്രിക്കൽ - വിഷമദൃഷ്ടി.


കോഡ്: .

മലയാളത്തിൽ \'\'കോൺവെക്സ് \" എന്നെഴുതുമ്പോൾ മറ്റ് ലെൻസുകളെ അപേക്ഷിച്ച് ദീർഘമുള്ള പേരാണ് ഇത്. അതിനാൽ ദീർഘദൃഷ്ടി പരിഹരിക്കാനുപയോഗിക്കുന്നു \' .
മലയാളത്തിലെഴുതുമ്പോൾ \"കോൺകേവ് \" എന്ന വാക്ക് മറ്റ് ലെൻസുകളുടെ പേരെഴുതുന്നതിനേക്കാൾ ചെറുതാണ്. ഹ്രസ്വദൃഷ്ടി പരിഹരിക്കാനുപ�...

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Formula :  .

Train Speed = Distance / Time.


Points to Remember .

To change km/hr into m/sec, we need to multiply it by 5 / 18. .

Example:.

90 km/hr means.

90 x 5 / 18.

= (5 x 5 ).

= 25 m/sec.

And if we need to convert m/sec into km/hr, we multiply it by 18 / 5.

Example:.

90 m/sec means.

90 x 18 / 5.

= ( 18 x 18 ).

= 324 km/hr.

Time taken by a train of length l meters to pass a pole or standing man or a signal post is equal to the time taken by the train to cover l meters.
Time taken by a train of length l meters to pass a stationary object of length b meters is the time taken by the train to cover (l + b) meters.
Suppose two trains or two objects bodies are mo...

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Shortcut tricks on boats and streams are one of the most important topics in exams. These are the formulas and examples on Boats and Streams (Cyclist and the wind or Swimmer and stream) questions. These examples will help you to better understand shortcut tricks on boats and streams questions.


There are multiple types of questions asked from these topics. The speed of the boat in still water and the speed of stream will give in questions, You have to find the time taken by boat to go upstream and downstream. .
The speed of the boat in up and down stream will give in question,  you need to find the average speed of the boat.
The speed of boat to go up or down the stream will give in question, you need to find speed of boat in still water and speed of stream.
The time taken by boat to reach a place in up and downstream will given in question, you need to find the distance to the place.

LINE_F...

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