List of top Questions asked in Haryana PMT

When two sinusoidal waves moving at right angle to each other superimpose, they produce

The reiation between electric field vector E, the displacement vector D and the polarization vector P for a dielectric placed in electric field E is given by

A metal nitrate reacts with $KI$ to give black precipitate which turns to orange on addition of $ KI $ . Metal is

The formula for horizontal range of a projectile is $S=\frac{v^{2}\sin ^{2}\theta }{2g}$ where $v$ is initial speed, $ \theta $ angle of inclination and $g$ is acceleration due to gravity. The Wheatstone bridge shown in figure can be used to determine the range if the following arrangement is made

Which of the following is not oxidised by ozone?

Benzamide on reaction with $POCl_{3}$ gives

With the rise of temperature the resistivity of a semiconductor

Total number of lone pairs of electrons on $Xe$ in $XeOF_{4}$ is

$2$-acetoxy benzoic acid is

Which is necessary for conversion of butane-$2$-one into propanoic acid?

The number of radial nodes of $3\,s$ and $2\,p$ orbital are

The ratio of rates of diffusion of helium and methane under same conditions of temperature and pressure will be

A sodium salt on treatment with $ MgCl_{2}$ gives white precipitate on heating. The anion of sodium salt is

Adsorption of gases on solid surface is exothermic since

In solid $CuSO_{4} \cdot 5H_{2}O$ copper is coordinated to number of water molecules

The acid having $ O-O $ bond is

If $a_1$ and $a_2$ are two non-collinear unit vectors and if $|a_1 + a_2| = \sqrt3$ ,then the value of $(a_1 - a).(2a_1 + a_2)$ is

Damping on sharpness of resonance has

In a stationary wave represented by $Y =2 a \cos kx \sin \omega t$ the intensity at a certain point is maximum when

One of the causes of the breadth of the spectral lines is

Each of the properties if sound in List-I primarily depends on one of the quantities in List-II. Select the correct answer (matching List-I with List-II) as per code given below the lists:

In the circuit shown the equivalent resistance between $A$ and $B$ is

The energy of an X-ray photon of wavelength $1\, ?$ is $\left( h =6.6 \times 10^{34} J - s \right)$

Gravitational field is

According to Bohrs theory of hydrogen atom, for the electron in the $n^{\text {th }}$ allowed orbit the (i) linear momentum is proportional to $1 / n$ (ii) radius is proportional to $n$ (iii) kinetic energy is proportional to $1 / n^2$ (iv) angular momentum is proportional to $n$ Choose the correct option from the codes given below: