NTA JEE Main 23rd April 2013 Online

The plot given below is of the average power delivered to an LRC circuit versus frequency. The quality factor of the circuit is :

Select the correct statement from the following :

This question has Statement-1 and Statement-2. Of the four choices given after the Statements, choose the one that best describes the two Statements.
Statement 1: Very large size telescopes are reflecting telescopes instead of refracting telescopes.
Statement 2: It is easier to provide mechanical support to large size mirrors than large size lenses.

A light ray falls on a square glass slab as shown in the diagram. The index of refraction of the glass, if total internal reflection is to occur at the vertical face, is equal to :

$$n$$ identical waves each of intensity $$I_0$$ interfere with each other. The ratio of maximum intensities if the interference is (i) coherent and (ii) incoherent is :

Electrons are accelerated through a potential difference V and protons are accelerated through a potential difference 4 V. The de-Broglie wavelengths are $$\lambda_e$$ and $$\lambda_p$$ for electrons and protons respectively. The ratio of $$\frac{\lambda_e}{\lambda_p}$$ is given by: (given $$m_e$$ is mass of electron and $$m_p$$ is mass of proton).

In the Bohr's model of hydrogen-like atom the force between the nucleus and the electron is modified as $$F = \frac{e^2}{4\pi\epsilon_0}\left(\frac{1}{r^2} + \frac{\beta}{r^3}\right)$$, where $$\beta$$ is a constant. For this atom, the radius of the $$n^{th}$$ orbit in terms of the Bohr radius $$\left(a_0 = \frac{\epsilon_0 h^2}{m\pi e^2}\right)$$ is :

A system of four gates is set up as shown. The 'truth table' corresponding to this system is :

Which of the following statement is NOT correct?

Correct set up to verify Ohm's law is :