Day 527: JEE Mains Physics

1. A.
   $2\text{ }cm$
2. B.
   $1\text{ }cm$
3. C.
   $8\text{ }cm$
4. D.
   $4\text{ }cm$

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1. A.
   $\sqrt{3}:2$
2. B.
   $1:\sqrt{3}$
3. C.
   $\sqrt{3}:1$
4. D.
   $2:\sqrt{3}$

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1. A.
   (A) and (E) only
2. B.
   (B) and (E) only
3. C.
   (A), (C) and (E) only
4. D.
   (A), (C) and (D) only

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1. A.
   $\frac{1}{3}$ deflection method cannot be used for determining the resistance of the galvanometer.
2. B.
   $\frac{1}{3}$ deflection method can be used and, in this case, the $G$ equals to twice the value of shunt resistance(s).
3. C.
   $\frac{1}{3}$ deflection method can be used and, in this case,, the $G$ equals to three times the value of shunt resistance(s)
4. D.
   $\frac{1}{3}$ deflection method can be used and, in this case, the $G$ value equals to the shunt resistance(s).

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