MCQ
The main difference between the generations is the ………… and …………….. of the computer.
- Asize, shape
- Bhardware, software
- ✓speed, efficiency
- Dshape, performance
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A ray of light travels from air into a glass block as shown. It makes an angle of 30° with the surface of the block. If the refractive index of the glass is 1.5, what will be the angle of refraction?

If in the circuit, power dissipation is 150 W, then R is ……………..
