A. Zero
B. Double
C. Half
D. 1
A. They are parallel vectors
B. They are anti parallel vectors
C. They are a perpendicular vector
D. They are rotated through 270°
A. Number of incident electron i.e. filament current
B. The kinetic energy of the incident electron i.e. the potential difference through which they are accelerated
C. The soft target which can easily emit electrons
D. All of above are correct
A. 1N
B. 10N
C. 2N
D. 100N
A. at rest
B. moving slowly
C. move with high velocity
D. move with velocity comparable to velocity of light
A. force
B. displacement
C. distance
D. acceleration
A. 4πx10-9 WbA-1m-1
B. 4πx10-7 WbA-1m-1
C. 4πx10-10 WbA-1m-1
D. 4πx10-8 WbA-1m-1