Q-1
Q-2
Section-A
Answer the following questions as directed :
Name the scientist who first coined the term 'Protoplasm'?
Which physical identity has the unit ms ??
State if the following statement is true OR false; and if false kindly re
statement :
"Particles of suspension can not be seen with a naked eye."
Q-3
Which of the followina factors are not resnansihle that make a sail ?
Answers
Answered by
1
J. E. Purkinje
Given : ms⁻²
To find : physical identity has given unit
Solution:
ms⁻²
= m/s²
m - unit of length ( displacement / distance / length )
s = unit of time
Rate of change of distance / displacement is speed / velocity
m / s = velocity or Speed
Rate of change of velocity is acceleration
(m/s)/s = acceleration
=> m/s² = acceleration
=> ms⁻² = acceleration
acceleration has unit m/s²
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