10 Questions
What is the focal length of the biconvex lens when immersed in the liquid of refractive index 1.6?
- 40 cm
If the charges $5Q$ and $-2Q$ are situated at $(3a, 0)$ and $(-5a, 0)$ respectively, what is the electric flux through a sphere of radius $4a$ centered at the origin?
$\frac{2Q}{\epsilon_0}$
If $P_A$ and $P_B$ are the pressures of 1g of hydrogen and 1g of oxygen respectively, at the same temperature and volume, what is the ratio $P_A/P_B$?
16
If the deflection in a moving coil galvanometer falls from 25 divisions to 5 divisions when a shunt of $12\Omega$ is applied, what is the resistance of the galvanometer coil?
$48\Omega$
Given the potential energy function $U = (2x + 3y + 2z)^3$, what is the magnitude of the x-component of the force acting on a particle at the point P(1, 2, 3) m?
8 N
Which of the following statements about the explosive in a Hydrogen bomb is correct?
The explosive is a mixture of $^1H_2$ and $^1H_3$ in some condensed form.
What is the approximate energy released during the explosion of a Hydrogen bomb?
28.12 MeV
If the radius of curvature of the path of two particles of the same mass are in the ratio 3:4, what should be the ratio of their velocities to maintain a constant centripetal force?
1:$ {3}$
A capacitor of capacitance $C$ is charged to a potential of $V$ and connected to an inductor of inductance $L$ to produce oscillations. What is the maximum current in the circuit?
$ {rac{V}{LC}}$
A galvanometer with a coil resistance of $R$ shows a full-scale deflection for a current of $I$. What should be the value of the shunt resistance to measure a current of $I'$?
$ {rac{R}{I'/I - 1}}$
Test your knowledge on topics like refractive index, focal length of lenses, electric charges, and electric flux. Answer questions related to the behavior of light in different mediums and the electric field surrounding charges.
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