L21-24 EMR, light & reflection properties

​We are now dealing with "ionizing radiation"

• wave-like properties of EMR are less prominent due to high energies

Multiple Choice

An electromagnetic wave travels vertically upward, perpendicular with the ground. If the magnetic field component of the wave oscillates in a north-south orientation, then the electric filed component will oscillate

• south-north

• west-east

• vertically up-down

Fill in the Blank

A microwave signal that has a wavelength of 6.25x10^-3m is created by an oscillating current in a microwave generator. The frequency of this microwave is a.bx10^cdHZ

(record only the values of a,b,c, & d)

Fill in the Blank

Using the information from the previous question, what is the virtual focal length of the mirror?

(record your two digit answer to the nearest cm)

Multiple Choice

What would happen if the object were moved to the focal length of a converging mirror?

• the image would be virtual and inverted

• the image would be real and inverted

• the image would be virtual and upright/erect

• no image would be produced

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