Categories > Dual Nature of Radiation and Matter > Cathode Rays and Positive Rays > A narrow electron beam passes undeviated through an electric field $E = 3 \times {10^4}volt/m$and an overlapping magnetic field $B = 2 \times {10^{ - 3}}Weber/{m^2}$. If electric field and magnetic field are mutually perpendicular. The speed of the electrons is

Dual Nature of Radiation and Matter

Question: A narrow electron beam passes undeviated through an electric field $E = 3 \times {10^4}volt/m$and an overlapping magnetic field $B = 2 \times {10^{ - 3}}Weber/{m^2}$. If electric field and magnetic field are mutually perpendicular. The speed of the electrons is


1) 60 m/s
2) $10.3 \times {10^7}m/s$
3) $1.5 \times {10^7}m/s$
4) $0.67 \times {10^{ - 7}}m/s$
Solution: Explanation: No Explanation
Cathode Rays and Positive Rays

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