PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo
Read the statement and reason and check whether both of them are right:
 
1)
Statement: Sharp knives are used to cut vegetables.
 
Reason: Surface area of knives is smaller hence the pressure exerted to cut the vegetables will be higher.
 
Are both the statement and reason given correct?
 
2)
Statement: Oil, grease are used as lubricants in machineries.
 
Reason: Fluids such as oil, grease has high viscosity, hence can reduce the friction.
 
Are both the statement and reason given correct?