List of practice Questions

If the equivalent capacitance between A and B is $ \text{1}\text{F,} $ then the value of C will be
If the input is given between A and C, then the output at the ends of R will be
The charge on a particle Y is double the charge on particle X. These two particles X and Y after being accelerated through the same potential difference enter a region of uniform magnetic field and describe circular paths of radii R1 and R2 respectively. The ratio of the mass of X to that of Y is
An electric dipole is placed along the x-axis at the origin 0. A point P is at a distance of 20 cm from this origin such that OP makes an angle $ \text{/3} $ with the x-axis. If the electric field at P makes an angle $ \theta $ with the x-axis, the value of $ \theta $ would be
Two plane mirrors are inclined to each other at angle $ 60{}^\circ $ . Ray incident on first mirror parallel to the second mirror becomes parallel to first mirror after reflection. Angle of deviation is
A wire of length $l$ and mass m is bent in the form of a semicircle. The gravitational field intensity at the centre of semicircle is
A thin uniform rod of length $l$ and mass $m$ is swinging freely about a horizontal axis passing through its end. Its maximum angular speed is $\omega$. Its centre of mass rises to a maximum height of
A short linear object, of length $l$, lies along the axis of a concave mirror, of focal length $f$, at a distance $d$ from the pole of the mirror. The size of the image is then (nearly)
Which one of the following impurities present in colloidal solution cannot be remove by electrodialysis?
Which one of the following is correct pairing of a body part with the kind of muscle tissue present in it?
When propionic acid is treated with aqueous sodium bicarbonate, $ CO_{2}$ is liberated. The $C$ of $ CO_{2}$ comes from
When sucrose is heated with conc. $ HNO_{3},$ the product formed is
When a stationary wave is formed then its frequency is
Lithium metal crystallizes in a body centred cubic crystal. If the length of the side of the unit cell of lithium is $351\, pm,$ the atomic radius of the lithium will be
In a pure inductive circuit, current
If the dimensions of a physical quantity are given by $[M^{a}L^{b}T^{c}]$, then the physical quantity will be
Oxidation number of $S$ in $ H_{2}S_{2}O_{8}$ is
For the redox reaction, $Zn + NO _{3}^{-} \longrightarrow Zn ^{2+}+ NH _{4}^{+}$ in basic medium, coefficients of $Zn , NO _{3}^{-}$, and $OH ^{-}$in the balanced equation respectively, are
How many bonds does $B_{2}$ have?
Which of the following metal sols cannot be prepared by Bredig's arc metliod?
How many coulombs of electricity are required for reduction of $1$ mole of $ MnO_{4}^{-} $ to $ Mn^{2+}$ ?
Global agreement in specific control strategies to reduce the release of ozone depleting substances was adopted by
Which one of the following is not true ?
Chipko movement was launched for the protection of
Biochemical oxygen demand (BOD) in a river water