Question

Following are precautions one must take in case a storm is accompanied by lightning.

Which one of these is not correct?

• A. (i)
• B. (ii)
• C. (iii)
• D. (iv)

Answer 1

The correct option is D

(iv)

Explanation for the correct option:

Option D:

1. Electricity through the outside of a hollow conductor does not affect the insides of the conductor.
2. Here, a bus out in the open is acting as a hollow metal conductor.
3. The bus being struck by lightning will have no effect on the inside.
4. Hence, this option is correct.

Explanation for the incorrect options:

Option A:

1. Standing near trees is dangerous during lightning.
2. Human bodies are better conductors of electricity than trees.
3. The electricity will pass through human bodies instead.
4. Therefore, it is advised not to take shelter under a tree.
5. Hence, this option is incorrect.

Option B:

1. Metals are conductors of electricity.
2. By holding an umbrella with a metallic end, a path for electricity will be created and the lightning will strike there.
3. Hence, this option is incorrect.

Option C:

1. Open garages, storage sheds etc., are unsafe during lightning as they may contain a lot of conducting materials.
2. Conducting materials are often targets of lightning.
3. Hence, this option is incorrect.

Hence, option D is the correct option.