Question 74 of 295
Which of the following is used in optical fibres ?
Show answer and solution
Answer: (A) total internal reflection
No Solution Available
Ray Optics
JEE Main level, single correct, medium
JEE Main question paper PDF
Open a shift to read the full paper on this page, or download it.
Opening paper…
More Physics practice
- Ray OpticsA ray of light undergoes minimum deviation through an equilateral glass prism of refractive index . The angle of minimum deviation and angle of incidence are respectively:
- Ray OpticsIn the given ray diagram, an object is placed in front of a thin convex lens of focal length . A real inverted image of the same size is formed at . The distance between object and image is:
- Ray OpticsA convex lens of focal length forms a real image of same size as object. Object distance is:
- Ray OpticsTwo thin lenses of focal lengths and are kept in contact. The power of the combination is:
- Ray OpticsA slanted object is placed on one side of convex lens as shown in the diagram. The image is formed on the opposite side. Angle made by the image with principal axis is:
- Ray OpticsWhen one light ray is reflected from a plane mirror with angle of reflection, the angle of deviation of the ray after reflection is:
JEE Main Physics practice question on Ray Optics (Critical angle and total internal reflection), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.