gc textbook chapter 11 Vibrations and Waves (id: f538574df)

本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 通用国际物理

[填空题]
A satellite dish is au1z(sbzij a 2+*de nrer( ,.kqboutiaj hm05)i ;vepp,yzr 4on(.- dgjk/ j 0.5 m in diameter. According to the user’s manual, the dish has to be pointed in the direction of the satellite, but an error ofrjyhp(.pd/ -; jevk4 imgn0j ai5o)z, about 2 $^{\circ} $ is allowed without loss of reception. Estimate the wavelength of the electromagnetic waves received by the dish.    m

参考答案: 0.01745±2%


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