NEET 2021 Question Paper Mock Test

A dipole is placed in an electric field as shown. In which direction will it move?

Consider the following Statements (A) and (B) and identify the correct answer.A. A zener diode is connected in reverse bias, when used as a voltage regulator.B. The potential barrier of p-n junction lies between $0.1\text{V}$ to $0.3\text{V}$.

A half-life of a radioactive nuclide is $100$ hours. The fraction of original activity that will remain after $150$ hours would be:

An inductor of inductance $L$, a capacitor of capacitance $C$ and a resistor of resistance $R$ are connected in series to an ac source of potential difference $V$ volts. Potential difference across $L,C$ and $R$ is $40\text{V},10\text{V}$ and $40\text{V}$, respectively. The amplitude of current flowing through LCR series circuit is $10\sqrt{2}$. The impedance of the circuit is:

A body is executing simple harmonic motion with frequency $n$, the frequency of its potential energy is: