When light of wavelength 700 nm is used in a single-slit diffraction pattern, the central maximum has a width of 3.5 cm. When the light source is replaced by one of wavelength 500 nm, what central width will result?

A. 3.5 cm
B. 3.0 cm
C. 2.5 cm
D. 4.9 cm
E. 4.0 cm


C. 2.5 cm

Physics & Space Science

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A simple harmonic oscillator is undergoing oscillations with an amplitude A. How far is it from its equilibrium position when the kinetic and potential energies are equal?

A) A/2 B) A/ C) A D) A/3 E) A/

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Isotope A has a decay constant of 0.861 s-1 and isotope B has a decay constant of 0.627 s-1. Which isotope has a longer mean life (time constant)?

A) isotope A B) isotope B

Physics & Space Science

Give an example in which thermal energy might be converted to gravitational energy

What will be an ideal response?

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Which of the following represents a partial or total decarbonization of our energy supply?

A) switching from natural gas to nuclear power B) switching from coal to natural gas C) switching from oil (petroleum) to natural gas D) All of the above. E) None of the above.

Physics & Space Science