Lux is the SI unit of
A). intensity of illumination
B). luminous efficiency
C). luminous flux
D). luminous intensity
intensity of illumination
The SI unit of intensity of illumination (illuminance) is the lux. An illuminance of 1.0 lux is produced by 1.0 lumen of light shining on an area of 1.0 m2.
1. Which one of the following animals can hear ultrasonic sound ?
2. Name the process by which bubbles from liquid are formed?
3. The method of magnetisation is:
4. Brightness of bulb depends on voltage or current?
7. Danger signals are generally red as red light
8. ?The colours of starts depends on?their
10. If there were no gravity, which of the following will not be there for a fluid?