Q.1.
Optical fibers can be used to transmit which of the following?
Q.2.
Which formula correctly states the relationship between refractive index and critical angle?
Q.3.
Which of the following are examples of optical fibers?
Q.4.
What is the critical angle of a medium if its refractive index is 1.5?
Q.5.
Calculate the refractive index of a medium which has a critical angle of 52 .
Q.6.
Which of the following is NOT an application of total internal reflection?
Q.7.
Lasers can be used for a variety of applications. Which of the following are lasers useful for?
Q.8.
What is the normal range of sight for a human eye?
Q.9.
What is a laser?
Q.10.
What is the definition for critical angle in optics?