What is the quantum number n of a particle of mass m confined to a one-dimensional box of length L when its momentum is 4h/L?
a. 1
b. 4
c. 2
d. 8
e. 16
d
Physics & Space Science
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A high f-number:
a. allows using a slower shutter speed. b. causes more spherical aberration. c. allows a larger depth of focus. d. is not related to any of the above options.
Physics & Space Science
Four 20. ? resistors are connected in parallel. What is the equivalent resistance?
What will be an ideal response?
Physics & Space Science
A 10-gram wire that is 6.0 m long is under tension. When a transverse wave of frequency 280 Hz travels along the wire, its wavelength is 0.60 m, and its amplitude is 8.4 mm
How much time does it take for a crest of the transverse wave to travel the length of the wire? A) 36 ms B) 31 ms C) 40 ms D) 44 ms E) 49 ms
Physics & Space Science
The universe we live in now is said to be ________ dominated
A) hydrogen B) matter C) dark matter D) dark energy E) radiation
Physics & Space Science