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Question

Match the following

1. Sound waves (i) Mechanical wave

2. Light waves (ii) Non-mechanical waves

3. Waves on a string (iii) Transverse waves

(iv) Longitudinal waves


A

1 - (i) (iv); 2 - (ii) (iii); 3 - (i) (iii)

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B

1 - (i) (iv); 2 - (ii) (iv); 3 - (ii) (iii)

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C

1 - (ii) (iii); 2 - (i) (iii); 3 - (ii) (iv)

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D

1 - (ii) (iv); 2 - (i) (iv); 3 - (ii) (iii)

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Solution

The correct option is A

1 - (i) (iv); 2 - (ii) (iii); 3 - (i) (iii)


Sound wave:- is Mechanical as it needs medium to travel. It can't propagate in vacuum.

They are longitudinal waves as their particles oscillate in the same direction as the waves themselves

Light wave:- is a non-mechanical wave.For example Sun's light travels through vacuum to reach us. So they do not require material medium to travel.

Light waves are transverse electromagnetic waves.

Waves on a string:- Mechanical as itrequires medium to propogate.

Also transverse as all the particles of the string oscillate perpendicular to the direction of motion of string


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