Skip to main content
Back to DUAL NATURE OF RADIATION AND MATTER

NEET UG PHYSICS MCQ: DUAL NATURE OF RADIATION AND MATTER

1 Hard
1 of 1
Application +4 | -1
Cathode rays of velocity 106  ms−1{10^6}\mathrm{\;m}{\mathrm{s}^{ - 1}} describe an approximate circular path of radius 1 m in an electric field 300  Vcm−1.300\;\mathrm{Vc}{\mathrm{m}^{ - 1}}. If velocity of cathode rays are doubled. The value of electric field so that the rays describe the same circular path, will be
View answer and explanation
Correct option: C
1200  Vcm−11200\;\mathrm{Vc}{\mathrm{m}^{ - 1}}
Option C (1200  Vcm−11200\mathrm{\;Vc}{\mathrm{m}^{ - 1}}) is correct because the electric field must be quadrupled to maintain the same circular path when the velocity is doubled.

More Questions from DUAL NATURE OF RADIATION AND MATTER

Practice All Chapter MCQs →
Type at least 2 characters or jump directly:
🔓

Save your learning progress

Sign in with a free account to save your practice answers and quiz results, then return to them when you revise.