Question

Meeta's father was driving her to the school. At the traffic signal she noticed that each traffic light was made of many tiny lights instead of a single bulb. When Meeta asked his question to her father, he explained the reason for this.

Read the passage carefully and answer the questions given questions.

1) What were the values displayed by meeta ad here father?
2) What answer did Meeta's father give ?
3) What are the tiny lights in traffic signals called and how do these operate?

Answer 1

Hi,

Here is your answer,

Good Question !

Ans.1 Values displayed by Meeta and her father-

(a) Curiosity

(b) Creativity 

(c) Sharing Knowledge 

Ans.2  Meeta's father replied to Meeta :- LED lights only produce lights in desired colours , such as red,yellow or green , making them ideal for traffic signals. There is no need to filter the light through lens. As a result, true colour are produced more efficiently, with minimal waste of heat energy. These lights consume 10% of energy used by incandescent lamps.

Ans.3 Tiny lights are called LED (Light emitting diode) lights. Normal function of traffic lights requires more that slight control and coordination to ensure that traffic moves as smoothly and safely as possible. Different control systems are used to accomplish this, ranging from simple clockwork mechanisms to sophisticated computerised control and coordination system.

⊕ These are operated by connecting the P-N Diode in forward based condition.


Hope it helps you !

Answer 2

Explanation:

Saw upper answer........xD