Physics
A ray of light travels from a medium of refractive index n<sub>1</sub> to a medium of refractive index n<sub>2</sub>. If angle of incidence is i and angle of refraction is r, then is equal to 1. n<sub>1</sub> 2. n<sub>2</sub> 3. 4.
Related Questions
A light moves from denser to rarer medium, which of the following is correct?
- Energy increases
- Frequency increases
- Velocity increases
- None of the above
Observe the heating curve of water

Which of the following represent boiling?
- OA
- AB
- BC
- CD
Fuse is an alloy of
- lead and copper
- copper and tin
- lead and tin
- None of the above
For cooking of food, which of the following types of utensil is most suitable?
- High specific heat and low conductivity
- High specific heat and high conductivity
- Low specific heat and low conductivity
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