Which one of the following statements is 'WRO | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) An $LED$ (Light Emitting Diode) is a semiconductor device that emits light when an electric current flows through it.$1$. LEDs are known for their

Vedclass · Accepted Answer

Brightness of light emitted by $LED$ cannot be controlled.

Vedclass · Answer

(D) An $LED$ (Light Emitting Diode) is a semiconductor device that emits light when an electric current flows through it.$1$. LEDs are known for their long operational lifetime when manufactured correctly.$2$. The light produced by LEDs is monochromatic or specific in wavelength, and the colours do not fade over time.$3$. LEDs are highly energy-efficient compared to traditional incandescent or fluorescent bulbs.$4$. The brightness of an $LED$ can be easily controlled by varying the amount of current flowing through it (using techniques like Pulse Width Modulation or simple current limiting).Therefore, the statement that the brightness of light emitted by an $LED$ cannot be controlled is '$WRONG$'.

Which one of the following statements is '$WRONG$' regarding $LED$?

Similar Questions

Which of the following will $NOT$ be observed when a multimeter (operating in resistance measuring mode) probes connected across a component are reversed?

To measure light intensity,we use:

With increasing biasing voltage of a photodiode,the magnitude of photoelectric current

Which of the following statements is true about LEDs?

The laptop PCs,modern electronic watches,and calculators use the following for display:

Vedclass Test Series

Exam Paper Generator

Online Exam Module