The resolution of a microscope can be most improved by

A. increasing the wavelength and diameter of the lens.
B. decreasing the wavelength and the diameter of the lens.
C. decreasing the wavelength and increasing the diameter of the lens.
D. increasing the wavelength and decreasing the diameter of the lens.


C. decreasing the wavelength and increasing the diameter of the lens.

Physics & Space Science

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Explain the difference between a galaxy and a solar system

What will be an ideal response?

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When the surface of a metal is exposed to blue light, electrons are emitted. If the intensity of the blue light is increased, which of the following things will also increase?

A) the number of electrons ejected per second B) the maximum kinetic energy of the ejected electrons C) the time lag between the onset of the absorption of light and the ejection of electrons D) the work function of the metal E) all of the above

Physics & Space Science

For an ideal gas,

A) CP = CV for all ideal gases. B) CP > CV for all ideal gases. C) CP < CV for all ideal gases. D) it depends on whether the gas is monatomic or diatomic.

Physics & Space Science

Aluminum has a magnetic susceptibility ? = 1.7 × 10-5 at T = 300 K. What will be the magnetization of a small sample of aluminum placed in a 1.5 T magnetic field at T = 150 K?

A) 20.3 A/m B) 1.5 A/m C) 81.1 A/m D) 40.6 A/m E) 10.2 A/m

Physics & Space Science