Applications of Total Internal Reflection Fibre Optics Total internal reflection is also used in optical fibres. An optical fibre consists of an inner core of high refractive index glass and surrounded by an outer cladding of lower refractive index. When light is introduced into the inner core at one end, it will propagate along the fibre in a zigzag path undergoing … [Read more...] about Applications of Total Internal Reflection
Physics
Cathode Ray Oscilloscope Construction and Working
What is meant by cathode ray oscilloscope? Cathode Ray Oscilloscope A cathode ray oscilloscope (C.R.O.) is an instrument that converts electrical signals to a visual display. The main structure of the C.R.O. is a highly evacuated cathode ray tube (C.R.T.) which emits an electron beam known as cathode ray beam. The cathode ray tube consists of three main … [Read more...] about Cathode Ray Oscilloscope Construction and Working
Oersted Experiment on Magnetic Effect of Current
Oersted Experiment on Magnetic Effect of Current Oersted Experiment Arrangement : A straight wire AB is connected to a battery V and key K. The wire is held horizontally over a magnetic needle. Working : When key is closed, current flows in the wire in the direction as shown. The needle deflects one side. When key is taken out and current in wire becomes zero, needle … [Read more...] about Oersted Experiment on Magnetic Effect of Current
How would you Describe the Image Formed by a Plane Mirror
How would you Describe the Image Formed by a Plane Mirror Reflection from the Plane Mirror Relation between the distances of the object and the image from the plane mirror is that they are equal. To verify this, consider the geometrical construction shown in figure. Rays OP and OD, starting from the object O, fall on the mirror. The ray OP is perpendicular to the mirror … [Read more...] about How would you Describe the Image Formed by a Plane Mirror
What do you mean by Total Internal Reflection?
What do you mean by Total Internal Reflection? The inside surface of water can act like a perfect mirror as shown in Figure. This happens when the light rays strike the surface of the water in such a way that it reflects back into the water. The light rays are said to be reflected internally. This phenomenon is known as total internal reflection. It occurs only … [Read more...] about What do you mean by Total Internal Reflection?