The area of an orbit is proportional to the square of its radius.
For hydrogen atoms, the radius of the first excited state is four times the radius of the ground state.
Since the area is proportional to \( r^2 \), the ratio of the areas is:\(\ \left(\frac{4r}{r}\right)^2 = 16:1\)
Given below are two statements:
Statement (I) : The dimensions of Planck’s constant and angular momentum are same.
Statement (II) : In Bohr’s model, electron revolves around the nucleus in those orbits for which angular momentum is an integral multiple of Planck’s constant.
In the light of the above statements, choose the most appropriate answer from the options given below:
The circuit shown in the figure contains two ideal diodes \( D_1 \) and \( D_2 \). If a cell of emf 3V and negligible internal resistance is connected as shown, then the current through \( 70 \, \Omega \) resistance (in amperes) is: 