How many visible-light photons are emitted

Reference no: EM137789

Q1. A battery of e.m.f 1.50v has a terminal pd of 1.25v is joined to it. Calculate the current flowing, the internal resistance r and the terminal pd when a resistor of 10ohms replaces the 25 ohm resistor.

Q2. At what angle will 540 nm light produce a second-order maximum while falling on a grating whose slits are 1.25 10-3 cm apart?

Q3. If the average frequency emitted by a 200,-, rm W light bulb is 5.00 times 10^ {14}, {rm Hz}, and 10.0 percent of the input power is emitted as visible light, about how many visible-light photons are emitted per second?

Reference no: EM137789

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