MCQ
The nature of the graph between potential difference and the electric current flowing through a conductor is :
- Aparabolic
- Bcircle
- ✓straight line
- Dhyperbolic
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| S. No. | Angle of incidence | Angle of refraction | Angle of emergence |
| $I$ | $45^{0}$ | $41^{0}$ | $45^{0}$ |
| $II$ | $40^{0}$ | $38^{0}$ | $38^{0}$ |
| $III$ | $45^{0}$ | $41^{0}$ | $40^{0}$ |
| $IV$ | $41^{0}$ | $45^{0}$ | $41^{0}$ |