List of practice Questions

Modulation is the process of superposing
The standard electrode potential of hydrogen electrode at $1\, M$ concentration and hydrogen gas at $1\, atm$ pressure is
Formation of coloured solution is possible when metal ion in the compound contains
The general formula of a cycloalkane is
The dimensional formula for impulse is
The maximum height attained by a projectile when thrown at an angle $\theta $ with the horizontal is found to be half the horizontal range. Then $\theta $ =
The ionization energy of $Li^{2+}$ is equal to
The de Broglie wavelength of a proton (charge = $1.6\times10^{-19}C$ mass = $1.6\times10^{-27} kg)$ accelerated through a p.d of $1\, kV$ is
Minority carriers in a $p-type$ semiconductor are
Which of the following statements is true?
Glucose gives silver mirror with ammoniacal silver nitrate because it has
The gases carbon-monoxide $ (CO) $ and nitrogen at the same temperature have kinetic energies $ E_1 $ and $ E_2 $ respectively. Then
When ammonium chloride is added to ammonia solution, the pH of the resulting solution will be
The potential energy of a simple harmonic oscillator, when the particle is half way to its end point is (where $ E $ is the total energy)
The moment of inertia of a uniform circular disc of radius $ R $ and mass $ M $ about an axis touching the disc at its diameter and normal to the disc is
Sound waves are not transmitted a long distance because
If an electron is brought toward another electron, the electric potential energy of the system
An open knife edge of mass m is dropped from a height $h$ on a wooden floor. If the blade penetrates distance $s$ into the wood, the average resistance offered by the wood to the blade is
$x^2 + y^2 -6x-6y + 4 = 0, x^2 + y^2 - 2x - 4y + 3 - 0 , x^2 + y^2 + 2k x + 2y +1 = 0$. If the Radical centre of the above three circles exists, then which of the following cannot be the value of $k$ ?
Moment of inertia of ring about its diameter is $ I $ Then, moment of inertia about an axis passing through centre perpendicular to its plane is
Which of the following is not an accessory pigment?
The relation between voltage sensitivity $\left(\sigma_{ v }\right)$ and current sensitivity $\left(\sigma_{1}\right)$ of a moving coil galvanometer is (resistance of galvanometer is G).
Extraction of zinc from zinc blende is achieved by
Consider a titration of potassium dichromate with acidified Mohr?s salt solution using diphenylamine as indicator. The number of moles of Mohr?s salt required per mole of dichromate is :
The fraction of total volume occupied by the atoms present in a simple cube is