A) 1 represents far-sightedness
B) 2 correction for short sightedness
C) 3 represents far-sightedness
D) 4 correction for far-sightedness
Correct Answer: A
Solution :
Here, \[E=1500\,V/m,\,B=0.4\,Wb/{{m}^{2}}\] Minimum speed of electron along the straight line \[\upsilon =\frac{E}{B}\] \[=\frac{15000}{0.4}\] \[=3750\] \[=3.75\times {{10}^{3}}m/s\]You need to login to perform this action.
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