Like poles of ………… magnet each other.  A) attract 

B) electronegativity

i when lenses are kept in contact then 1/f = 1/f1 + 1/f2 f = f1f2 / f1 + f2 ii. When kept distant apart, 1/f = 1/f1 +1/f2 - d/f1f2

Given: m = 5.0 Am2, 2l = 20 cm = 0.20 m To find: Pole strength (qm) Formula: qm = \(\frac{m}{2l}\) Calculation: From formula. qm = \(\frac{5.0}{0.20}\) = 25 Am

When bar magnet is cut into two equal parts, then magnetic moment of each part becomes half of the original directed from S to N pole. ∴ Magnetic moment of the combination...

C) the normal force is zero

The correct answer is A) Petals

C) A is true, but R is false

Correct option is A) attract

Correct Answer - C `I=(M)/(V)=(m)/(A)`