Question
A rubber ball is dropped from a height of 2 metres. To
what height will it rise if there is no loss of energy/velocity after rebounding?Solution
The potential energy of a body when raised through height h is given by mgh. Eachtime, a normal rubber ball hitsthe floor, it losesone-fifthofitstotalenergyandtherebound heightisproportionaltoenergy,soeachbounce will rebound to four-fifth of the previous bounce.
Statement:
 Only a few P are Q       Â
Only a few Q are P Â Â Â Â
Conclusion: Â Â Â Â Â Â Â
I. All Q being ...
Each option contains some statements. Determine from which statements the given two conclusions follow.
Conclusions:
I. Some subjec...
In the questions given below, there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be...
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if t...
- Three statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance w...
Gagan is ranked 144th from the top in his class. When counted from the bottom, he is ranked 229th . What is the total number of students in t...
Statement:
Only a few radios are TVs
Only a few laptops are cables
All cables are TVs
Conclusion:
I. All laptop...
Read the given statements and conclusions carefully and decide which of the conclusions logically follow(s) from the statements.
Statements:
Statements:
Some silks are fibres.
No fibre is a polyesters.
Some polyesters are nylons.
Conclusion:
I. Somesilks...
In the question below there are three statements followed by three conclusions I, II and III. You have to take the four given statements to be true eve...
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