a. maxwell\'s equations : which of the following is correct (choose 2): 1)show a

Question

a. maxwell's equations : which of the following is correct (choose 2):
1)show a connection between speed of sound and electromagneticism
2)show that change in the electric field affects magnetic field and vice versa
3)they describe the quantum structure of light (relating to photons) ..
4)show a connection between speed of light and electromagneticism

b. Choose the correct sentences regarding the photoelectric effect (there might be more than one correct answer):
1. The amount of the emitted electrons from the metal is dependent on the frequency of the harmful photons
2. The amount of electrons emitted from the metal depends on the intensity of harmful photons
3. The kinetic energy of the electrons emitted from the metal depens on the intensity of the harmful photons
4. The kinetic energy of the electrons emitted from the metal depends on the frequency of the harmful photons


c. Info: Work needed in order to release an electron from metal A is smaller than work needed to release an electron from metal B. Choose one:
1. The amount of electrons emitted from metal B is larger than the amount of electrons emitted from metal A
2. The amount of electrons emitted from metal A is larger than the amount of electrons emitted from metal B
3. The kinetic energy of the electrons that are emitted from metal A is larger than the kinetic energy of the electrons emitted from metal B
4. The kinetic energy of electrons emitted from metal B is larger than the kinetic energy of electrons emitted from metal A


d. Field lines describe a field in a space. Their direction describes the direction of the field and their size describes the intensity of the field on each point. For this question, a picture of filed lines is attached. Which field do these field lines NOT describe?
1. A flow field
2. A magnetic field
3. An electric field
4. A gravitational field

Explanation / Answer

a)-2 ,4

b)-2 ,4

c)-3

d)-1

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.