MCQ
The lamps in a house hold circuit are connected in parallel because :
- AThis way they required less current.
- ✓If one lamp fails the others remain lit.
- CThis way they require less power.
- DIf one lamp fails the other also fail.
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| S. No. | Angle of incidence | Angle of refraction | Angle of emergence |
| $I$ | $45^{0}$ | $41^{0}$ | $45^{0}$ |
| $II$ | $40^{0}$ | $38^{0}$ | $38^{0}$ |
| $III$ | $45^{0}$ | $41^{0}$ | $40^{0}$ |
| $IV$ | $41^{0}$ | $45^{0}$ | $41^{0}$ |