List of practice Questions

The length of a seconds pendulum is
The length of a magnet is large compared to its width and breadth. The time period of its oscillation in a vibration magnetometer is 2 s. The magnet is cut along its length into three equal parts and three parts are then placed on each other with their like poles together. The time period of this combination will be
The length of a microscope is 14 cm and for relaxed eye the magnifying power is 25. The focal length of the eye piece is 5 cm. What is the distance of the object from the objective ?
The least value of 'a' for which $5^{1+x}+5^{1-x},\frac{a}{2},25^x+25^{-x}$ are three consecutive terms of an A.P. is
The length of a conductor is halved. Its conductivity will be
The least random state of $H_2O$ system is
The least value for the common base transistor amplifier is in the case of
The largest term common to the sequences $1, 11, 21, 31,...$to $100$ terms and $31, 36, 41, 46,.....$ to $100 $ terms is
The last element of the third transition series is
The largest invertebrate Architeuthis dux is a
The largest reservoir of nitrogen on Earth is
The largest flower found is known as
The large hand of a clock is $42 \,cm$ long. How much distance does its extremity move in $20$ minutes?
The largest bond angle is in
The knee voltage of a p-n junction diode is 0.8 V and the with of the depletion layer is 2 $\mu m$, the electric field in the depletion layer is
The Kolbe's electrolysis proceeds via
The kingdom protista was established by
The kinetic theory of gases gives the formula $PV = \frac{1}{3} Nm\bar{v}^{2}$ for the pressure P exerted by a gas enclosed in a volume $V$. The term $Nm$ represents
The Kingdom Protista forms a link with Kingdom
The kinetic energy of a particle executing SHM is maximum, when its displacement is equal to
The kind of coelom represented in the diagram given below is characteristic of:
The ionization enthalpy of $He^{+} ion is 19.60 \times10^{-18} J atom^{-1}.$ The ionization enthalpy of $Li^{2+}$ ion will be
The IUPAC name of $[Ni(CO)_4]$ is
The ionic radius of $Cl^{-}$ ion is $1.81\, \mathring A $. The interionic distances of $NaCl$ and $NaF$ are $2.79 \, \mathring A $ and $2.31\, \mathring A $ respectively. The ionic radius of $F^{-}$ ion will be
The ionisation constant of acetic acid is $1.8 \times 10^{-5}$. At what concentration will it be dissociated to 2% ?