A. Antiproton
B. Positron
C. Gamma rays
D. Photon
Related Mcqs:
- Proton electron neutron and a particles have same momentum. Which of them have highest K.E ?
A. Proton
B. electron
C. neutron
D. a-particle - A particle of mass m charge q and speed V enters a uniform magnetic radius r. The radius r of the circle is_________________?
A. independent mass m
B. directly proportional to m
C. directly proportional to q
D. directly proportional to B - When a particle of charge q and mass m enters into a uniform magnetic field B moving with a velocity v perpendicular to the direction for the field it describes a circular path of radius___________________?
A. R=qB/mV
B. R=mV/qB
C. R=qmV/B
D. R=qmB/V - When an electron moving with a uniform speed in a vacuum enters a magnetic field in a direction perpendicular to the field the subsequent path of the electron is ___________________?
A. a straight line parallel to the field
B. a parabola in a plane perpendicular to the field
C. a circle in a plane perpendicular to the field
D. a straight line along its initial direction - For confinement of electron in a box of radius 10-14m the electron, speed should be_____________?
A. 107m/sec
B. Should be greater than the speed of light.
C. Be zero
D. Not be wave-like - In bringing an electron towards the second electron, the electrostatic potential energy of the system
A. Decreases
B. increases
C. remains the same
D. becomes zeroSubmitted by: Tauseef Ali
- The charge on an electron was determine by ________________?
A. Ampere
B. Maxwell
C. Millikan
D. Thomson - The penetration power of alpha particle as compared to beta particle is_______________?
A. 10 times more
B. 100 times more
C. 100 times less
D. 10 times less - A million electron are added to a pith ball. Its charge is________?
A. – 1.6 × 10–12 coulomb
B. – 1.6 × 10–13 coulomb
C. – 1.6 × 10 –18 coulomb
D. – 1.6 × 10 coulombSubmitted by: Tauseef Ali
- The charge on beta particle is________________?
A. 1
B. -1
C. +2
D. -2
