Rajkamal Sir (Engineers Platform) 📚📚

5. The space to height ratio in illumination lies between [SSC JE EE 2018]

4. Which of the following will need lowest level of illumination? [SSC JE EE 2018]

3. Radiant efficiency of a luminous source depends on on………..[SSC JE EE 2021]

2. Lux is unit of which physical quantity? [SSC JE EE 2018]

1. A lamp having mean spherical candle power of 800 is suspended at a height of 10 m. Calculate the illumination just below the lamp. [SSC JE EE 2014]

5. The space to height ratio in illumination lies between [SSC JE EE 2018]

4. Lux is unit of which physical quantity? [SSC JE EE 2018]