Two blocks of masses 
and 
are placed one over the other as shown in figure. The coefficient of friction between 
and 
is 
and between 
and ground is 
. If a horizontal force 
is applied on upper block and 
is tension developed in string, then choose the incorrect alternative.
A
If 
B
If 
C
If 
.
. D
If 
Text Solution
Verified by ExpertsThe correct answer is:
C
maximum value of friction between 
and 
maximum value of friction between 2 m and ground
Now, let us draw free body diagram of 
and 
in all four cases.
(i) 
(ii) 
(iii) 
(iv) 
As tension is zero in all four cases. So, option is incorrect.
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