Which produces a brighter image? Choose the best answer

a. a small-diameter telescope b. a large-diameter telescope
c. A very small light collector d. None of the other choices are correct.


b

Physics & Space Science

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In a parallel RLC circuit, where IR = IR, max sin(?t), the current through the inductor, IL, is

a. IL = ?IL, max sin(?t). b. IL = IL, max sin(?t). c. IL = ?IL, max cos(?t). d. IL = IL, max cos(?t). e. IL = IL, max tan(?t).

Physics & Space Science

In a Hall experiment a conducting strip of thickness d = 100 ?m is placed in a magnetic field B = 0.0 5 T. The magnetic field is perpendicular to the direction of the strip along which there is a 10-A current

What is the Hall voltage measured across the strip if the charge carrier density is 2.5 × 1028/m3 in this material? A) 1.3 ?V B) 2.5 ?V C) 0.72 ?V D) 6.2 ?V E) 4.2 ?V

Physics & Space Science

Secondary seismic waves travel ______________ primary waves in solids

a. in the direction opposite to the movement of b. slower than c. faster than d. at right angles to

Physics & Space Science

The Chandrasekhar limit of stellar mass (below which a star will collapse into a white dwarf) is, if the mass of our Sun is M, about

A) 0.8 M. B) 1.2 M. C) 1.4 M. D) 1.9 M. E) 2.8 M.

Physics & Space Science