| Consider the following statements with reference to lightning. |
| 1. During storms, negative and positive charges meet in the clouds, producing streaks of bright light and sound. The process is called an electric discharge. |
| 2. During lightning it is not safe to use mobile phone, but it is safe to use a landline. |
| 3. Carrying umbrella is not a good idea at all during thunderstorms. |
| Which of the statements given above are correct? |
A) 1 and 2
B) 2 and 3
C) 1 and 3
D) All of these
Correct Answer: C
Solution :
[c] Lightning is sudden electrostatic discharge during electric storm between electrically charged region of cloud, between that cloud and other cloud or between a cloud and the ground. The charge region, within the atmosphere temporarily equalize themselves through a lightning flash. Lightning can strike telephone cords, electrical wires and metal pipes. During a thunderstorm contact with these should be avoided. It is safer to use mobile phones and cordless phones. However, it is not wise to call up a person who is receiving your phone through a wired phone. Except, Statement 2 all the other statements are correct.
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