Question

Part A.

Considering light at the two ends of the visible light spectrum, violet light has a _____ wavelength and a _____ photon energy than red light.

	A.Shorter, higher
	B.Longer, higher
C.	Longer, lower
D.	Shorter, lower

Part B.

Lenz’s law states that an induced magnetic field in a conductor

A.	Opposes the change in flux through the conductor.
B.	Opposes the applied magnetic field.
C.	Induces a matching electric field that causes a current.
D.	Opposes the applied flux through the conductor.

Part C.

In this video, we see that a _____ magnetic field can create an electric current.

In this video, we see that a _____ magnetic field can create an electric current.

	A.Perpendicular
	B.Changing
	C.Dipole
	D.Strong

Part D.

A particle with a charge of q = -5.90 nC is moving in a uniform magnetic field of B⃗ =( -1.25 T ) k^.The magnetic force on the particle is measured to be F⃗ =( −7.60×10⁻⁷ N )j^.

Calculate vx, the x component of the velocity of the particle?

Answer 1

Part A

In the visible pattern, the wavelength increases from violet to Red.

The wavelength is inversely proportional to energy

violet light has a shorter wavelength and a higher photon energy than red light.

Correct option: A

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Part B:

Lenz’s law states that an induced magnetic field in a conductor,

Opposes the change in flux through the conductor.

Correct option is ( A )

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Part C.

Vedio not appeared in the question to answer this question

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Part D:

The magnetic force on the particle is

F = q ( v X B )

( −7.60×10⁻⁷ N )j^. = -5.90 ×10⁻⁹ ( v i x ( -1.25 T ) k^ )

Solve for v

v = 103 m /s