Two spheres whose radii are in the ratio 1 : 2 are moving with their velocities in the ratio 3 : 4. If their densities are in the ratio 3 : 2, the ratio of their kinetic energies is,

A thin prism p1 with an angle 6° and made of glass of refractive index 1.54 is combined with another prism p2 made from glass of refractive index 1.72 to produce dispersion without average deviation. The angle of prism p2 is&nbsp;

A ray of fight falls at angle of incidence&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mn>60</mn><mo>∘</mo></msup></math>&nbsp;on one face of prism of angle&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mn>30</mn><mo>∘</mo></msup></math>. Emerging ray makes an angle of&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mn>30</mn><mo>∘</mo></msup></math>&nbsp;with incident ray. The refractive index of material of prism is

To recombine the spectrum to obtain white light, the dispersive prism and recombination prism should be in which position with the dispersion prism? <pstyle="margin-top:0pt;margin-bottom:0pt;text-align:justify;line-height:normal;font-size:12pt"><spanstyle="font-family:'TimesNewRoman';-aw-import:ignore"><pstyle="margin-top:0pt;margin-bottom:0pt;text-align:justify;line-height:normal;font-size:12pt"><spanstyle="font-family:'TimesNewRoman';-aw-import:ignore">

The phenomenon due to which white light splits into seven colours on passing through a prism is called:

Two spheres whose radii are in the ratio 1 : 2 are moving with their velocities in the ratio 3 : 4. If their densities are in the ratio 3 : 2, the ratio of their kinetic energies is,

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