State whether the following statements are true or false :

(a) Like charges attract each other.

(b) A charged glass rod attracts a charged plastic straw.

(c) Lightning conductor cannot protect a building from lightning.

(d) Earthquakes can be predicted in advance.

(e) An earthquakes of magnitude 2 on Richter Scale is ten times as strong as an earthquake of magnitude 1 on the same Scale.

(f) The plates of earth's crust are continuously moving.

(g) An earthquake is measured and recorded by using an instrument called electrocardiograph.

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Solution

(a) False (b) True (c) False (d) False (e) True (f) True (g) False

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Similar questions

Write T against true and F against false in the following statements.

(a) Like charges attract each other. (T / F)

(b) A charged glass rod attracts a charged plastic straw. (T / F)

(d) Earthquakes can be predicted in advance. (T / F)

An earthquake of magnitude 2 on Richter scale is:

(a) two times as strong as an earthquake of magnitude 1

(b) four times as strong as an earthquake of magnitude 1

(d) hundred times as strong as an earthquake of magnitude 1

The magnitude of an earthquake is measured on:

(a) Celsius scale (b) Kelvin scale (c) Decibel scale (d) Richter scale

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