A point source is placed at the bottom of a tank containing a transparent liquid…
Physics · Class 12 · CBSE — Ray Optics & Optical Instruments
A point source is placed at the bottom of a tank containing a transparent liquid (refractive index \(n\) ) to a depth H. The area of the surface of the liquid through which light from the source can emerge out is
- \(\frac{\pi {H}^{2}}{(n-1)}\)
- \(\frac{\pi {H}^{2}}{\left(n^{2}-1\right)}\)
- \(\frac{\pi {H}^{2}}{\sqrt{n^{2}-1}}\)
- \(\frac{\pi {H}^{2}}{\left(n^{2}+1\right)}\)
Answer
(B) H ^ 2 (n^ 2 -1 )
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The plane face of a planoconvex lens is silvered. The refractive index of material and radius of curvature of…
- The angle of minimum deviation for prism of angle p /3 is p /6, if the velocity of light in vacuum is 3 × 10…
- The radii of curvature of the surfaces of a double convex lens are 20 cm and 40 cm respectively, and its…
- Light from a point source in air falls on a spherical glass surface of radius of curvature and refractive…
- Assertion (A): In a reflecting telescope, the image does not have chromatic aberration. Reason (R): Chromatic…
- There are certain material developed in laboratories which have a negative refractive index. A ray incident…
- Which of the following pairs of media has the least value of critical angle?
- A ray of light strikes a transparent rectangular slab of refractive index at an angle of incidence of 45°…
More Ray Optics & Optical Instruments questions · Browse all practice questions