Concepts Of Physics MCQ Edition [Volume 2]
- Exam
- Concepts Of Physics MCQ Edition [Volume 2]
- Subject
- Physics
- Chapter
- Electric Current through Gases
Concepts Of Physics MCQ Edition [Volume 2] · Physics · Electric Current through Gases
Which of the following statements hold true for a cathode ray?
Which of the following statements hold true for a cathode ray?
Options
- AIt remains undeflected by a magnetic field.
- BIt produces X-rays upon striking a metal.
- CIt propagates in straight lines.
- DIt constitutes an electromagnetic wave.
Correct answer
C. It propagates in straight lines.
Step-by-step solution
Cathode rays are streams of fast-moving electrons.
Since they consist of negatively charged particles, they are deflected by both electric and magnetic fields.
When high-energy cathode rays strike a heavy metal target, they cause the emission of X-rays.
In the absence of any external electric or magnetic field, cathode rays travel in straight lines.
Cathode rays are streams of particles and do not constitute electromagnetic waves.
Thus, the statements that hold true are that they produce X-rays upon striking a metal and propagate in straight lines.
Since they consist of negatively charged particles, they are deflected by both electric and magnetic fields.
When high-energy cathode rays strike a heavy metal target, they cause the emission of X-rays.
In the absence of any external electric or magnetic field, cathode rays travel in straight lines.
Cathode rays are streams of particles and do not constitute electromagnetic waves.
Thus, the statements that hold true are that they produce X-rays upon striking a metal and propagate in straight lines.