Verified Solution • 2025–26 Session moderate

QAIPMT-2005-Ph-2526: NEET 2005 Physics - Class 12 AIPMT-2005-Ph-2526 Solution: A ball is thrown vertically upward. It has a speed of 10 m/sec…

A ball is thrown vertically upward. It has a speed of 10 m/sec when it has reached one half of its maximum height. How high does the ball rise? (Take g = 10 m/s2\text{m/s}^2.) 10 m 5 m 15 m 20 m

Multiple Choice Options

  • A μd=0{\mu _d} = 0 _ d _ = 0 and μ\mu _ p ≠\ne _ = 0
  • B μ\mu _ d ≠\ne _ = 0 and μ\mu _ p = 0
  • C μ\mu _ p = 0 and μ\mu _ f ≠\ne _ = 0
  • D μ\mu _ d ≠\ne _ = 0 and μ\mu _ f ≠\ne _ = 0.

Step-by-Step Verified Solution

The magnetic dipole moment of diamagnetic material is zero as each of its pair of electrons have opposite spins, i.e., _ d = 0. Paramagnetic substances have dipole moment > 0, i.e. _ p � 0, because of excess of electrons in its molecules spinning in the same direction. Ferro-magnetic substances are very strong magnets and they also have permanent magnetic moment, i.e. _ f � 0.

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