In a double-slit experiment, it is observed that the distance between adjacent maxima on a remote screen is 1 cm. What happens to the distance between adjacent maxima when the slit separation is cut in half?
A) It increases to 2 cm.
B) It increases to 4 cm.
C) It decreases to 0.5 cm.
D) It decreases to 0.25 cm.
A
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A proton, of mass m and speed v, strikes an alpha-particle (which consists of 2 protons and 2 neutrons) at rest
If the collision is completely elastic, what speed will the ?-particle have after the collision? (Assume the neutron's mass equals the proton's mass.) A) zero B) 3/2 v C) 2/5 v D) 2/3 v E) 5/3 v
An irregularly shaped object is attached to an axle so that it may be spun. If a torque of 250Nm must be applied for 1.25s in order to give it a rotation period of 0.10s, what is its moment of inertia?
A. 5.0
B. 31
C. 4.0
D. 25
How would the self-inductance, L, of a coil change if you would increase its radius by a factor of two and increase its length by a factor of two?
A) L would not change. B) L would be doubled. C) L would be quadrupled. D) L would be halved. E) L would be reduced by 4.
Most polymers that are solid at room temperature do not mix with other polymers even when melted, because of the very high ___________of mixing.
Fill in the blank(s) with the appropriate word(s).