List of top Questions asked in Punjab PMET

What effect occurs on the frequency of a pendulum if it is taken from the earth's surface to deep into a mine?

The length of second's pendulum is 1 m on earth. If mass and diameter of a planet is doubled than that of earth, then its length becomes

Which of the following statements is incorrect?

The angle between the dipole moment and electric field at any point on the equatorial plane is

The potentials of the two plates of capacitors are $+10\, V$ and $-10\, V$. The charge on one of the plates is $40\, C$. The capacitance of the capacitor is

Which of the following statements is incorrect?

To increase magnifying power of telescope, we should increase:

Which of the following statements is incorrect?

The stability of complexes of $ C{{u}^{2+}},\,\,N{{i}^{2+}},\,\,C{{o}^{2+}} $ and $ F{{e}^{2+}} $ varies in the order:

The acidity of hydrides of $O , S , Se$, Te varies in the order :

Which of the following molecules has pentagonal bipyramidal shape?

Molecular orbital electronic configuration for $' X'$ anion is : $K K^{*}(\sigma 2 s)^{2}\left(\sigma^{*} 2 s\right)^{2}\left(\pi 2 p_{x}\right)^{2}\left(\pi 2 p_{y}\right)^{2}\left(\sigma 2 p_{z}\right)^{2}$ $\left(\pi^{*} 2 p_{x}\right)^{1}$. The anion ' $X$' is :

The relative Lewis acid character of boron trihalides is in the order:

The bond order of $ O_{2}^{+},\,\,{{O}_{2}},\,\,O_{2}^{2-} $ and $ O_{2}^{-} $ varies in the order:

Which of the following statements is incorrect?

An electron with values $4, 2, -2$ and $+1/2$ for the set of four quantum numbers $ n,\,\,l,\,\,{{m}_{l}} $ and $ s $ respectively, belongs to:

Which of the following compounds is the strongest acid?

The mass of a photon with wavelength $ 3.6\,??$ is:

The magnitude of any physical quantity

The crystal of diamond shines due to

If $ \sigma $ = surface charge density, $ \varepsilon $ = electric permittivity the dimensions of $ \frac{ \sigma}{ \varepsilon } $ are same as

If L is the coherence length and c the velocity of light, the coherent time is

For a wire of length $l$ , maximum change in length under stress condition is $2 \,mm$. What is the charge in length under same conditions when length of wire is halved?

For reversible process, the value of $\Delta S$ is gives by the expression:

A wire is cut into four pieces, which are put together by sides to obtain one conductor. If the original resistance of wire was $ R $ , the resistance of the bundle will be: