A particle having a mass of 0.5g carries a charge of `2.5xx10^-8C`. The particle is given an initial horizontal velocity of `6xx10^4ms^-1`. To keep the particle moving in a horizontal direction

A particle having a mass of 10^(-2) kg carries a charge of 5 xx 10^(-8) C . The particle is given an initial horizontal velocity of 10^(5) msec^(-1) in the presence of electric field vec(E) and magnetic field vec(B) . To keep the particle moving in a horizontal direction, it is necessary that A. vec(B) should be perpendicular to the direction of velocity and vec(E) should be along the direction of velocity B. Both vec(B) and vec(E) should be along the direction of velocity C. Both vec(B) and vec(E) are mutually perpendicular and perpendicular to the direction of velocity D. vec(B) should be along the direction of velocity and vec(E) should be perpendicular to the direction of velocity

A particle having a mass of 10^(-2) kg carries a charge of 5 xx 10^(-8) C . The particle is given an initial horizontal velocity of 10^(5) msec^(-1) in the presence of electric field vec(E) and magnetic field vec(B) . To keep the particle moving in a horizontal direction, it is necessary that A. vec(B) should be perpendicular to the direction of velocity and vec(E) should be along the direction of velocity B. Both vec(B) and vec(E) should be along the direction of velocity C. Both vec(B) and vec(E) are mutually perpendicular and perpendicular to the direction of velocity D. vec(B) should be along the direction of velocity and vec(E) should be perpendicular to the direction of velocity

A particle of mass 10^31 kg is moving with a velocity equal to 10^5ms^-1 . The wavelength of the particle is equal to

A particle of mass 10^31 kg is moving with a velocity equal to 10^5ms^-1 . The wavelength of the particle is equal to

A particle is projected at an angle theta =30^@ with the horizontal, with a velocity of 10ms^(-1) . Then

A particle is projected at an angle theta =30^@ with the horizontal, with a velocity of 10ms^(-1) . Then