The density of states for a metal depends primarily on:
A. The temperature
B. The energy
C. The density of metal
D. The volume of the sample
A positive charge moving with constant velocity v enter a region of a uniform magnetic field pointing out the page. What is the direction of magnetic force on charge?
A. Left
B. Right
C. To the bottom of page
D. To the top of page
Which one of the following is correct relation between Current density and magnetization?
A. J= Grad of M
B. J= Div of M
C. J= curl of M
D. M= curl of J
The atomic diameter of a BCC crystal ( if a is lattice parameter) is:
A. A
B. A/2
C. A/(4/3)
D. A/(4/2)
Data are stored in a random access memory (RAM) during the:
A. Write operation
B. Enable operation
C. Read operation
D. Addressing operation
Over= damping results in:
A. Slower return to equilibrium
B. Faster return to equilibrium
C. Equilibrium is never achieved
D. Unrhythmic return to equilibrium
A radio transmission from an astronaut on the moon will be received how many later on Earth ? ( The moon is 380 million meter form the Earth)
A. 0.12¢
B. 0.25¢
C. 0.38¢
D. 1.27¢
A sphere, a cube and a thin circular plate, all made of same material and having same mass are initially heat at temperature of 3000°K , which of these will cool faster?.
A. Sphere
B. Cube
C. Plate
D. None of these