List of top Physics Questions asked in GUJCET

A voltmeter has resistance of G ohm and range of V volt.The resistance required in series to convert it into a voltmeter of range n V volt is
If the uniform surface charge density on the infinite plane sheet is $\sigma$, electric field near the surface will be
To increase the charge on the plate of a capacitor means to
A point charge causes an electric flux of $ -1.0 x\times 10^3 \, Nm^ 2 \, C^{-1} $ to pass through a spherical Gaussian surface of 10.0 cm radius centred on the charge. If the radius of the Gaussian surface were three times, how much flux would pass through the surface?
The combined capacitance of the arrangement shown in figure given below, in $\mu F$ is
You are given n resistors, each of resistance r. They are first combined to get minimum possible resistance, then they are connected to get the maximum possible resistance. The ratio between rrurnmum to maximum resistance is
Emission of light stops as the incident light is cut-off in
The radioactivity of a sample is x at time $t_1$ and is y at time $t_2$. If the mean life of the specimen is $\tau$, the number of atoms that have disintegrated in the time interval $(t_2 - t_1)$ is
In a transistor amplifier, the two AC current gains $\alpha $ and $ \beta $ are defined as $\alpha=\frac{\partial I_C}{\partial I_E} $ and $ \beta =\frac{\partial I_C}{\partial I_B}$ the relation between $\alpha$ and $\beta$ is
If the magnetic flux is represented in weber, then the unit of magnetic induction will be
If the electric current in a lamp decreases by $5 \%,$ then the power output decreases by
A critical angle for a medium is $60^\circ.$ Then the refractive index of the medium will be
The electric potential at the surface of an atomic nucleus (Z = 50) of radius $ 9 \times 10^{ - 15} \, m$ is
As electric dipole placed in a non-uniform electric field in such a way that angle between $p$ and $E$ is not $0^\circ$ or $ 180^\circ $, so it experiences
Two capacitors of capacitance $C_1$ and $C_2$, are connected in parallel. If a charge Q is given to the combination, the charge gets shared. The ratio of the charge on the capacitor $C_1$ to the charge on the capacitor $C_2$ is
A sphere encloses an electric dipole within it. The total flux across the sphere is