A microwave transmitter is used to direct microwaves of wavelength 30 mm along a line XY. A metal plate is positioned at right angles to XY with its mid-point on the line, as shown. X. transmitter detector metal plate Y When a detector is moved gradually along XY, its reading alternates between maxima and minima. Which one of the following statements is not correct?

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Chapter1: Units, Trigonometry. And Vectors
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Q3.
Amicrowave transmitter is used to direct microwaves of wavelength 30 mm along a line XY. A
metal plate is positioned at right angles to XY with its mid-point on the line, as shown.
A
B
C
X
D
transmitter
When a detector is moved gradually along XY, its reading alternates between maxima and
minima. Which one of the following statements is not correct?
The distance between two minima could be 15 mm.
The distance between two maxima could be 30 mm.
The distance between a minimum and a maximum could be 30 mm.
The distance between a minimum and a maximum could be 37.5 mm.
detector
metal
plate
Y
Transcribed Image Text:Q3. Amicrowave transmitter is used to direct microwaves of wavelength 30 mm along a line XY. A metal plate is positioned at right angles to XY with its mid-point on the line, as shown. A B C X D transmitter When a detector is moved gradually along XY, its reading alternates between maxima and minima. Which one of the following statements is not correct? The distance between two minima could be 15 mm. The distance between two maxima could be 30 mm. The distance between a minimum and a maximum could be 30 mm. The distance between a minimum and a maximum could be 37.5 mm. detector metal plate Y
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