Total internal reflection occurs when: A. Light is going from a material in whic

ID: 2243629 • Letter: T

Question

Total internal reflection occurs when:
A. Light is going from a material in which it travels slowly to one in which it travels faster

B. Light is going from a material in which it travels faster to one in which it travels slower

C. Light is going from a material into another material and travels equally fast through each.

What does ?x E = -?B/?t mean?

A. A magnetic field makes something happen electrically

B. A Change in magnetic field makes something happen electrically

C. The spread of the electrical field is 0

D. The spread of the magnetic field is 0

E. Electricity can make magnetic fields

Which of the following says that magnetism can be used to generate electricity? magnetism?
A. ?x E = -?B/?t

B. ?x B = ?0J + ?0?0?E/?t

C. ?

1) A. Light is going from a material in which it travels slowly to one in which it travels faster

Explaination:: total internal reflection only occours when light travels from medium with high refractive index to that in the lower.

2) A. A magnetic field makes something happen electrically

Explaination:: This is the maxwell's relation joining rate of change of magnetic field with the electric field

3) A. ?x E = -?B/?t

Explanation:: same explaination

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