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Which of the following statements is/are correct with regard to earthquake waves? 1) P waves can travel through solid, liquid and gaseous materials. 2) S waves can travel only through liquid material. 3) Velocity of P waves increases at it enters from denser to rarer medium. Select the correct answer using the code given below.

Which of the following statements is/are correct with regard to earthquake waves? 1) P waves can travel through solid, liquid and gaseous materials. 2) S waves can travel only through liquid material. 3) Velocity of P waves increases at it enters from denser to rarer medium. Select the correct answer using the code given below. Correct Answer 1 only

P wave are like Sound waves and can travel in all the three mediums of solid, liquid and gas. Hence statement 1 is correct.

S waves can only travel in solid medium and cannot travel in liquid and gaseous medium. Hence statement 2 is incorrect.

Velocity of P waves is in proportional to density of medium and hence it decreases as it enters from denser to rarer medium or solid to liquid medium. Hence statement 3 is incorrect.

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