Questions
The ratio of magnetic moments of two short magnets which give null deflection in Tan B position at 24 cm and 18 cm from the centre of a deflection magnetometer is
a
2 : 3
b
64 : 27
c
27 : 64
d
4: 9
detailed solution
Correct option is B
At the Tan B position , the strength of the magnetic moment at the magnetometer is proportional to the cube of the distance between the magnetometer and center of deflection of the magnetometer.∴M1d13=M2d23 ⇒M1M2=d1d23 ⇒M1M2=24183 ⇒M1:M2=64:27Talk to our academic expert!
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