Question: A 2 0 0 0 Hz sound wave passes through a wall with two narrow openings 3 0 cm apart. If sound travels on average

A $2000$ Hz sound wave passes through a wall with two narrow openings $30$ cm apart. If sound travels on average $343$ m $/$ s $,$ find the following. What is the angle of the first order maximum?

$($ b $)$ Find the slit separation when you replace the sound wave with a $4.25$ cm microwave, and the angle of the first order maximum remains unchanged.

$($ c $)$ If the slit separation is $1.00 µ$ m $,$ what frequency of light gives the same first order maximum angle?

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