JEE MAIN 2023 ONLINE 13TH APRIL EVENING SHIFT

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : The diameter of colloidal particles in solution should not be much smaller than wavelength of light to show Tyndall effect.

Reason R : The light scatters in all directions when the size of particles is large enough.

In the light of the above statements, choose the correct answer from the options given below:

Given below are two statements: one is labelled as Assertion \(\mathbf{A}\) and the other is labelled as Reason \(\mathbf{R}\)

Assertion A : The binding energy per nucleon is practically independent of the atomic number for nuclei of mass number in the range 30 to 170 .

Reason R : Nuclear force is short ranged.

In the light of the above statements, choose the correct answer from the options given below

Let for \(A = \left[ {\matrix{ 1 & 2 & 3 \cr \[\alpha & 3 & 1 \cr\] 1 & 1 & 2 \cr } } \right],|A| = 2\). If \(\mathrm{|2\,adj\,(2\,adj\,(2A))| = {32^n}}\), then \(3n + \alpha\) is equal to

Better method for preparation of \(\mathrm{BeF}_{2}\), among the following is :

To radiate EM signal of wavelength \(\lambda\) with high efficiency, the antennas should have a minimum size equal to:

The plane, passing through the points \((0,-1,2)\) and \((-1,2,1)\) and parallel to the line passing through \((5,1,-7)\) and \((1,-1,-1)\), also passes through the point :