Tag: seismic waves and tsunami

Questions Related to seismic waves and tsunami

State whether the given statement is True or False :
Lightning strikes more on small buildings as compared to larger one.

physics some natural phenomena transfer of charge lightning safety seismic waves and tsunami

  1. True

  2. False

Show answer
Correct Option: B
Explanation:

Tall buildings and monuments are frequently hit by lightning. We should always avoid being the highest object anywhere or taking shelter near or under the highest object, including tall trees. We should avoid being near a lightning rod or standing near metal objects such as a fence or underground pipes.

State whether given statement is True or False.
Does lightning always strike the tallest object?

physics some natural phenomena transfer of charge lightning safety seismic waves and tsunami

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

Lightning strike in initiated very high in thunderstorm clouds. Objects on ground have very little influence on its travelling path. Conceptually the taller object is more susceptible to lightning because of shorter air gap between lightning stroke and object.

Can the lightning rods be made of any material?

physics some natural phenomena transfer of charge lightning safety seismic waves and tsunami

  1. Yes

  2. No. It can only be made of metals.

  3. No. It can be made with any type of bodies with neutral charge

  4. None of these

Show answer
Correct Option: B
Explanation:

It should be of metallic object so that it can conduct the charge. Any material wont be able to conduct charge.

Lightning rod can be most effective if it draws charge from lowest cloud by method of contact. This statement is True/ False?

physics some natural phenomena transfer of charge lightning safety seismic waves and tsunami

  1. True

  2. False

Show answer
Correct Option: B
Explanation:

There is no need to contact cloud to discharge those. Strong electric fields provides the pathway between cloud and lightning rod.

State whether given statement is True or False.
Lightning rods are placed on houses to reduce risk of lightning damage to low.

physics some natural phenomena transfer of charge lightning safety seismic waves and tsunami

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

Lightning rods divert charge to ground during striking and earth has zero potential. Thus the risk of damage is reduced.