Questions from Modern Physics


Q: A light source radiates a sinusoidal electromagnetic wave uniformly in all directions

A light source radiates a sinusoidal electromagnetic wave uniformly in all directions. This wave exerts an average pressure p on a perfectly reflecting surface a distance R away from it. What average...

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Q: Is polarization a property of all electromagnetic waves, or is it

Is polarization a property of all electromagnetic waves, or is it unique to visible light? Can sound waves be polarized? What fundamental distinction in wave properties is involved? Explain.

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Q: For a certain sinusoidal wave of intensity I, the amplitude of

For a certain sinusoidal wave of intensity I, the amplitude of the magnetic field is B. What would be the amplitude (in terms of B) in a similar wave of twice the intensity?

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Q: A series ac circuit contains a 250-Ω resistor, a

A series ac circuit contains a 250-Ω resistor, a 15-mH inductor, a 3.5-µF capacitor, and an ac power source of voltage amplitude 45 V operating at an angular frequency of 360 rad/s. a. What is the po...

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Q: In an L-R-C series circuit the source is

In an L-R-C series circuit the source is operated at its resonant angular frequency. At this frequency, the reactance XC of the capacitor is 200 Ω and the voltage amplitude across the capacitor is 600...

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Q: You have a 200-Ω resistor, a 0.400

You have a 200-Ω resistor, a 0.400-H inductor, a 5.00-µF capacitor, and a variable frequency ac source with an amplitude of 3.00 V. You connect all four elements together to form a series circuit. a....

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Q: Light of original intensity I0 passes through two ideal polarizing filters having

Light of original intensity I0 passes through two ideal polarizing filters having their polarizing axes oriented as shown in Fig. E33.28. You want to adjust the angle f so that the intensity at point...

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Q: A flat piece of glass covers the top of a vertical cylinder

A flat piece of glass covers the top of a vertical cylinder that is completely filled with water. If a ray of light traveling in the glass is incident on the interface with the water at an angle of θa...

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Q: Give several examples of electromagnetic waves that are encountered in everyday life

Give several examples of electromagnetic waves that are encountered in everyday life. How are they all alike? How do they differ?

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Q: An L-R-C series circuit consists of a source

An L-R-C series circuit consists of a source with voltage amplitude 120 V and angular frequency 50.0 rad/s, a resistor with R = 400 Ω, an inductor with L = 3.00 H, and a capacitor with capacitance C....

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