MCQ
The colour of white light which suffers the maximum bending $($or maximum refraction$)$ on passing through a glass prism is :
- AYellow.
- BOrange.
- CRed.
- ✓Violet.
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Assertion (A): The magnitude of the magnetic field at a point on the axis of a current-carrying solenoid is inversely proportional to the current flowing through the solenoid.
Reason (R): The magnitude of the magnetic field at a point on the axis of a current-carrying solenoid is directly proportional to the number of turns per unit length of a solenoid.