For two beams of light traveling different distances in reaching a point, and to form maximum constructive interference at that point, the beams must travel paths that differ by a whole number of wavelengths
Indicate whether the statement is true or false
TRUE
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Wien's Law: As the temperature of a blackbody increases, what happens to the peak wavelength of the light it radiates?
A. It gets longer. B. It gets shorter. C. The wavelength is not affected by the temperature of the object.
Assume the Heisenberg uncertainty principle can take the form ?E?t ? h/4B. How accurate can the position of an electron be made if its speed is 5 × 10^6 m/s and if the uncertainty in its energy is 10 eV?
a. 7.7 × 10^?18 m b. 1.3 × 10^?23 m c. 6.2 × 10^?15 m d. 1.6 × 10^?10 m e. 1.2 × 10^?9 m
In the ASTM designation system of HSLA steels, the letter grade A following the three digits in the designation system indicates that this alloy is of the _________strength.
Fill in the blank(s) with the appropriate word(s).
Two single charged ions moving perpendicularly to a uniform magnetic field (B = 0.40 T) with speeds of 5 000 km/s follow circular paths that differ in diameter by 5.0 cm. What is the difference in the mass of these two ions?
a. 2.6 × 10^?28 kg b. 6.4 × 10^?28 kg c. 3.2 × 10^?28 kg d. 5.1 × 10^?28 kg e. 1.1 × 10^?28 kg